Capacitors Question & AnswersJune 5, 2021 By WatElectronics This article lists 100+ Capacitors MCQs for engineering students. All the Capacitors Questions & Answers given below includes solution and link wherever possible to the relevant topic.A capacitor is a device that stores electric charge, will find capacitors in almost all circuit boards. The electrons can’t pass through the capacitor because of the insulating material. The charge has the property of an electric field and the electric field is a type of energy. Capacitors contain two conducting materials like metal inside the capacitor, and those two metals are separated from each other with an electric insulator or a vacuum. Capacitors are used as frequency-dependent impedance and it is used for temporary energy storage.The capacitors are categorized into two groups they are polarized and non-polarized capacitors. The polystyrene capacitor, ceramic capacitor, Teflon capacitors are non-polarized capacitors. Air or Vaccum, rubber, oil, paper, mica, glass, ceramic, etc are the dielectric materials. The ultra-capacitors have a long life, fast transient response, and high efficiency. To store the electric charge the ultra-capacitors use a double layer effect. Supercapacitors are also known as ultracapacitors or electrical double-layer capacitors. The supercapacitors are high cost, it has a high self-discharge rate, and cannot be used in AC and high-frequency circuits.1). ___________ stores charge Capacitors Resistors Both a and b None of the above HintCapacitors stores charge2). The parallel metal plates of the capacitor separated by ________ Insulators Isolators Both a and b None of the above HintThe parallel metal plates of the capacitor separated by insulators3). The nominal capacitance of the paper capacitors is around ________ 0.1uF to 10uF 0.01uF to 10uF 0.001uF to 10uF 0.5uF to 10uF HintThe nominal capacitance of the paper capacitors is around 0.001uF to 10uF4). The working voltage of the paper capacitors is around ________ 100v to 200v 200v to 300v 300v to 600v 200v to 600v HintThe working voltage of the paper capacitors is around 200v to 600v5). The typical tolerance of the paper capacitors is ________ 2% 4% 6% 10% HintThe typical tolerance of the paper capacitors is 10%6). The temperature coefficient of the paper capacitors is ________ ±100 deg/c ±400 deg/c ±800 deg/c ±1000 deg/c HintThe temperature coefficient of the paper capacitors is ±800 deg/c7). The disadvantage of the paper capacitor is _______ Size Suspectible and hygroscopic to moisture Both a and b None of the above HintThe disadvantage of the paper capacitor is large in size, susceptible, and hygroscopic to moisture8). The advantage of the paper capacitor is _______ Low cost Voltage rating is high Stable All of the above HintThe paper capacitor is low cost, stable, and the voltage rating is high9). The dissipation factor of paper capacitors is _____ 1% 4% 6% 10% HintThe dissipation factor of paper capacitors is 1%10). The dielectric absorption of paper capacitors is __________ 2.5% 4% 6% 10% HintThe dielectric absorption of paper capacitors is 2.5%11). How many conductors does the capacitor consist of? One Two Three Four HintThe capacitor consists of two conductors12). The capacitance measured in ______ Watts Henry Farads None of the above HintThe capacitance measured in farads13). The dielectric materials increase the ________ Capacitance Resistivity Both a and b None of the above HintThe dielectric materials increase the capacitance14). Capacitor obey _________ law Coulombs Ohms law Kirchhoffs law All of the above HintThe capacitor obeys coulombs law15). The relationship between frequency, capacitance, and capacitor reactance is given by _____ Capacitance reactance=1/2πfc Capacitance reactance=1/2πf Capacitance reactance=1/2fc Capacitance reactance=1/4πfc HintThe relationship between frequency, capacitance, and capacitor reactance is given by 1/2πfc16). The capacitors categorized into _______ groups One Two Three Four HintThe capacitors are categorized into two groups they are polarized and non-polarized capacitors17). Which one is a polarized capacitor? Electrolytic capacitor Ceramic capacitor Silver capacitor Teflon capacitor HintElectrolytic capacitor is a polarized capacitor18). Which one is a non-polarized capacitor? Polystyrene capacitor Ceramic capacitor Teflon capacitor All of the above HintPolystyrene capacitor, ceramic capacitor, Teflon capacitors are non-polarized capacitors19). _________ are the dielectric materials Air or Vaccum Rubber, oil, paper Mica, glass, ceramic All of the above HintAir or Vaccum, rubber, oil, paper, mica, glass, ceramic, etc are the dielectric materials20). What is the standard unit of electric charge? Watts Henry Farads Coulombs HintCoulombs is the standard unit of electric charge21). To store the electric charge the ultra-capacitors uses ______ effect Single layer Double layer Both a and b None of the above HintTo store the electric charge the ultra-capacitors use double-layer effect22). The advantages of ultra-capacitors are _______ Long life Transient response is fast Efficiency is high All of the above HintThe ultra-capacitors have a long life, and the transient response is fast, efficiency is high 23). The capacitance range of supercapacitors is from ________ 100 farad to 5000 farad 200 farad to 5000 farad 300 farad to 5000 farad 400 farad to 5000 farad HintThe capacitance range of supercapacitors is from 100 farads to 5000 farads24). The supercapacitors are also known as ________ Ultracapacitors Electrical double-layer capacitors Ultra or electrical double-layer capacitors None of the above HintThe supercapacitors are also known as ultracapacitors or electrical double-layer capacitors25). The hybrid capacitors are categorized into ______ One Two Three Four HintThe hybrid capacitors are categorized into three types they are composite hybrids, asymmetric hybrids, and battery type hybridsCapacitors MCQs for Students26). The conducting polymers and metal oxides are ____________ capacitors Hybrid Double layer Pseudo None of the above HintThe conducting polymers and metal oxides are pseudocapacitors27). The activated carbons, carbon nanotubes, carbon aerogels are _______ type of capacitors Hybrid Double layer Pseudo None of the above HintThe activated carbons, carbon nanotubes, carbon aerogels are double-layer capacitors28).The disadvantages of supercapacitors are ________ Cost is high Have a high self-discharge rate Cannot be used in AC and high-frequency circuits All of the above HintThe supercapacitors are high cost, and it has high self-discharge rate, and it cannot be used in AC and high-frequency circuits29). Which one is a variable capacitor? Ceramic trimmer capacitor Air gap capacitor Vaccum capacitor All of the above HintA ceramic trimmer capacitor is a variable capacitor30). Which one is a type of miscellaneous capacitor? Supercapacitors Air gap capacitors Hybrid capacitors All of the above HintAir gap capacitors are a type of miscellaneous capacitor31). The supercapacitors are categorized into __________ One Two Three Four HintThe supercapacitors are categorized into two types they are pseudo capacitors, and double-layer capacitors 32). Which one is a film-based capacitor? Metalized paper power capacitor Paper film/foil power capacitor PP film/foil power capacitor All of the above HintMetalized paper power capacitor, paper film/foil power capacitor, and pp film/foil power capacitor are film based capacitors33). The minimum film thickness of polyester is ___ 0.1-0.9µm 0.2-0.9µm 0.4-0.9µm 0.7-0.9µm HintThe minimum film thickness of polyester is 0.7-0.9µm34). The minimum film thickness of polyethylene sulfide is ___ 0.1µm 0.2µm 1.2µm 0.7µm HintThe minimum film thickness of polyethylene sulfide is 1.2µm35). The minimum film thickness of polyethylene naphthalate is ___ 0.1-0.9µm 0.2-0.9µm 0.4-0.9µm 0.9-1.4µm HintThe minimum film thickness of polyethylene naphthalate is 0.9-1.4µm36). The capacitance range of polyester is ____________ 100PF to 22µF 100PF to 2µF 100PF to 32µF 100PF to 42µF HintThe capacitance range of polyester is 100PF to 22µF37). The capacitance range of polyethylene naphthalate is ____________ 100PF to 22µF 100PF to 1µF 100PF to 32µF 100PF to 42µF HintThe capacitance range of polyethylene naphthalate is 100PF to 1µF38). The capacitance range of polyethylene sulfide is ____________ 100PF to 22µF 100PF to 1µF 100PF to 0.47µF 100PF to 42µF HintThe capacitance range of polyethylene sulfide is 100PF to 0.47µF39). The capacitance range of polypropylene is ____________ 100PF to 22µF 100PF to 10µF 100PF to 0.47µF 100PF to 42µF HintThe capacitance range of polypropylene is 100PF to 10µF40). The dielectric strength of polyester is ________ 580V/µm 780V/µm 880V/µm 980V/µm HintThe dielectric strength of polyester is 580V/µm41). The dielectric strength of polyethylene napthalate is ________ 500V/µm 780V/µm 880V/µm 980V/µm HintThe dielectric strength of polyethylene napthalate is 500V/µm42). The dielectric strength of polyphenylene sulfide is ________ 470V/µm 780V/µm 880V/µm 980V/µm HintThe dielectric strength of polyphenylene sulfide is 470V/µm43). The dielectric strength of polypropylene is ________ 470V/µm 780V/µm 650V/µm 980V/µm HintThe dielectric strength of polypropylene is 650V/µm44). The electrolytic capacitors are categorized into _______ families according to their dielectric One Two Three Four HintThe electrolytic capacitors are categorized into three families according to their dielectric they are aluminum, tantalum, niobium electrolytic capacitors45). The ____________ capacitors are fixed capacitors Non-polarized Polarized Both a and b None of the above HintThe non-polarized capacitors are fixed capacitors46). Niobium oxide capacitor is a type of ________ capacitor Solid electrolyte Polyester Pseudo None of the above HintNiobium oxide capacitor is a type of solid electrolyte capacitor47). Which capacitor do stores charge electrochemically? Double-layer capacitors Pseudo capacitors Hybrid capacitors All of the above HintPseudo capacitor stores charge electrochemically48). The polyester capacitors are categorized into ________ types One Two Three Four HintThe polyester capacitors are categorized into two types they are metalized film and foil capacitors49). The maximum capacitor value of super capacitor is ________ 5000F 10000F 1200F 12000F HintThe maximum capacitor value of super capacitor is 12000F50). Which type of energy does the capacitor store? Kinetic Potential Both a and b None of the above HintCapacitor stores potential energyCapacitors MCQs for Interviews51). After long time capacitor blocks ________ DC AC Both a and b None of the above HintAfter a long time capacitor blocks DC52). The DC voltage range of polyester is _______ 10-50V 20-50V 50-100V 50-1000V HintThe DC voltage range of polyester is 50-1000V53). The DC voltage range of polyethylene napthalate is _______ 10-50V 20-50V 50-100V 16-250V HintThe DC voltage range of polyethylene napthalate is 16-250V54). The DC voltage range of polypropylene is _______ 10-50V 16-100V 50-100V 50-1000V HintThe DC voltage range of polypropylene is 16-100V55). The DC voltage range of polyphenylene sulfideis _______ 40-2000V 16-250V 50-100V 50-1000V HintThe DC voltage range of polyphenylene sulfide is 40-2000V56). Which capacitor do stores charge electro statically? Double-layer capacitors Pseudo capacitors Hybrid capacitors All of the above HintDouble-layer capacitors stores charge electro-statically57). ______ is a passive device Capacitor Transistor Both a and b None of the above HintThe capacitor is a passive device58). The metals have _________ Low capacitance High capacitance High resistivity None of the above HintThe metals have high capacitance59). In transistor circuits _________ capacitors are used Ceramic Air Hybrid None of the above HintIn transistor circuits ceramic capacitors are used60). Which capacitor do stores charge electrochemically and electro-statically? Double-layer capacitors Pseudo capacitors Hybrid capacitors All of the above HintHybrid capacitors stores charge electrochemically and electro-statically61). _________ capacitors are used for tuning, radiofrequency coupling, and audio frequency Mica Air Ceramic None of the above HintMica capacitors are used for tuning, radiofrequency coupling, and audio frequency62). ___________ capacitors are used in communication transmitters Electrolyte Variable Air None of the above HintVariable capacitors are used in communication transmitters63). The value range of ceramic capacitors is from __________ Few picofarads to 0.1 microfarads Few picofarads to 3 microfarads Few picofarads to 10 microfarads None of the above HintThe value range of ceramic capacitors is from few picofarads to 0.1 microfarads64). The features of micro capacitors are _______ Low tolerance Very accurate Low resistive inductive losses All of the above HintThe features of micro capacitors are low tolerance, very accurate, and low resistive inductive losses65). The features of ceramic capacitors are ______ Low capacitance per unit volume Low loss factor Reasonable level of stability All of the above HintThe features of ceramic capacitors are low capacitance per unit volume, low loss factor, and a reasonable level of stability66). The features of paper capacitors are _________ Low capacitance High working voltage and current High leakage rates All of the above HintThe features of paper capacitors are low capacitance, high working voltage and current, and high leakage rates67). The features of thin-film capacitors ___________ High stability, low cost Low losses even at high frequencies Long shelf life All of the above HintThe features of thin-film capacitors high stability, low cost, low losses even at high frequencies, and long shelf life68). The frequency of electrolytic capacitor are ________ Limited frequency response High capacitance and voltage ranges are available High leakage current and aging All of the above HintThe frequency of electrolytic capacitor are limited frequency response, high capacitance and voltage ranges are available, and high leakage current and aging69). The tantalum _________ Allows large current to pass Reliable and stable over time Both a and b None of the above HintThe tantalum allows a large current to pass, reliable, and stable over time70). The charging time of super capacitors is _______ 1-2seconds 2-5seconds 1-8seconds 1-10seconds HintThe charging time of super capacitors is 1-10seconds71). The service life of supercapacitors is _______ 1-2seconds 2-5seconds 10-15seconds 1-10seconds HintThe service life of supercapacitors is 10-15seconds72). The capacitors used in _________ Energy storage systems Signal processing devices Filter applications All of the above HintThe capacitors used in energy storage systems, signal processing devices, filter applications, etc73). Based on the dielectric materials the SMD capacitors categorized into ______ types One Two Three Four HintBased on the dielectric materials the SMD capacitors categorized into three types they are multilayer ceramic, tantalum, and electrolytic capacitors74). The advantages of SMD capacitors are __________ Small in size Less cost High performance All of the above HintThe advantages of SMD capacitors are small in size, less cost, and high performance75). The disadvantages of SMD capacitors are ________ Low heat capacity Due to its size the manual operation is difficult Both a and b None of the above HintThe disadvantages of SMD capacitors are low heat capacity and due to its size the manual operation is difficultCapacitors MCQs for Exams76). What is the standard form of SMD capacitor? Simple Multilayer Device Surface Multilayer Device Surface Mount Device None of the above HintThe standard form of SMD capacitor is Surface Mount Device77). The ceramic capacitors used in _________ Printed circuit boards Transmitter stations Power circuit breakers All of the above HintThe ceramic capacitors used in printed circuit boards, transmitter stations, power circuit breakers, etc78). The polyester capacitors used in __________ DC applications Small size Most cost-effective All of the above HintThe polyester capacitors used in dc applications, small in size, and most cost-effective79). The temperature coefficient of PET capacitor is _________ ±1.0% ±2.0% ±4.0% ±5.0% HintThe temperature coefficient of PET capacitor is ±5.0%80). The temperature coefficient of X7R is _________ ±1.0% ±12.0% ±14.0% ±15.0% HintThe temperature coefficient of X7R is ±15.0%81). The dielectric absorption of PET capacitor is ________ ±1.0% ±12.0% 0.5% ±15.0% HintThe dielectric absorption of PET capacitor is 0.5%82). The dielectric strength of barium titanate is ___________ 2-10Kv/mm 4-10Kv/mm 6-10Kv/mm 8-10Kv/mm HintThe dielectric strength of barium titanate is 2-10Kv/mm83). The dielectric strength of paper is ___________ 10Kv/mm 14Kv/mm 60Kv/mm 80Kv/mm HintThe dielectric strength of paper is 14Kv/mm84). The dielectric strength of glass is ___________ 10Kv/mm 15Kv/mm 60Kv/mm 80Kv/mm HintThe dielectric strength of glass is 15Kv/mm85). The dielectric strength of mica is ___________ 63Kv/mm 15Kv/mm 60Kv/mm 80Kv/mm HintThe dielectric strength of mica is 63Kv/mm86). 100 PF is equal to ________ 0.1nF 0.9nF 0.10nF 0.8nF Hint100 PF is equal to 0.1nF87). 1000 PF is equal to ________ 1nF 0.9nF 0.10nF 0.8nF Hint1000 PF is equal to 1nF88). 100 nF is equal to ________ 1µF 0.1µF 0.10µF 0.8µF Hint100 nF is equal to 0.1µF89). The relative permittivity is defined as the ratio of _____________ Electric flux density divided by electric field strength FalseElectric field strength divided by electric flux density Electric field strength divided by dielectric flux density None of the above HintThe relative permittivity is defined as the ratio of electric flux density divided by electric field strength90). The paper capacitors used in ______ applications High current High voltage Both a and b None of the above HintThe paper capacitors used in high current and high voltage applications91). Which one is a type of film capacitor? Aluminum Tantalum Axial style None of the above HintAxial style is a type of film capacitor92). The nominal capacitance range of niobium electrolyte capacitor is _______ 1uF to 1200uF 1uF to 100uF 1uF to 200uF 1uF to 1500uF HintThe nominal capacitance range of niobium electrolyte capacitor is 1uF to 1500uF93). The working voltage of niobium electrolytic capacitor is from _________ 1V to 10V 10V to 16V 1V to 19V 1V to 20V HintThe working voltage of niobium electrolytic capacitor is from 10V to 16V94). The disadvantage of the niobium electrolytic capacitor is _____________ Low voltage rating High operating losses Both a and b None of the above HintThe disadvantage of the niobium electrolytic capacitor is voltage rating is low and the operating losses are high95). The advantage of niobium electrolytic capacitor is _____________ Low cost Reliable High volumetric capacitance All of the above HintThe advantage of niobium electrolytic capacitor is low cost, reliable, and high volumetric capacitance96). The nominal capacitance of tantalum electrolytic capacitor is from _______ 0.1uF to 1000uF 0.9uF to 1000uF 0.7uF to 1000uF 0.8uF to 1000uF HintThe nominal capacitance of tantalum electrolytic capacitor is from 0.1uF to 1000uF97). The working voltage of tantalum electrolytic capacitor is from _______ 3V to 100V 2V to 100V 6V to 100V 1V to 100V HintThe working voltage of the tantalum electrolytic capacitor is from 6V to 100V98). Typical tolerance of tantalum electrolytic capacitor is _______ 5% 10% 18% 20% HintThe typical tolerance of tantalum electrolytic capacitor is 20%99). The nominal capacitance of an aluminum electrolytic capacitor is from _______ 0.1uF to 47000uF 0.9uF to 1000uF 0.7uF to 1000uF 0.8uF to 1000uF HintThe nominal capacitance of an aluminum electrolytic capacitor is from 0.1uF to 47000uF100). What is the standard form of EDLC? Electrode Double Layer Capacitor Electric Double Layer Capacitor Electric/electrochemical Double Layer Capacitor None of the above HintThe standard form of EDLC is Electric/electrochemical Double Layer CapacitorCapacitors MCQs for Quiz101). The electric/electrochemical double-layer capacitor works on _______ layer capacitance principle Single Double Both a and b None of the above HintThe electric/electrochemical double-layer capacitor works on the double-layer capacitance principle102). The electrolyte is used as a ______ in electrolyte capacitors Conductor Insulator Isolator None of the above HintThe electrolyte is used as a conductor in electrolyte capacitors103). The coulombic efficiency of the capacitor is about _______ 10% 20% 50% 100% HintThe coulombic efficiency of the capacitor is about 100%104). The coulombic efficiency of the super capacitor is _______ 10% 20% 50% 99% HintThe coulombic efficiency of the super capacitor is up to 99%105). The coulombic efficiency of the battery is about _______ 10% 20% 70-80% 99% HintThe coulombic efficiency of the battery is about 70-80%106). The charge storage determinants of the capacitor is _______ Electrode area and dielectric Microstructure of electrode and electrolyte Thermodynamics and active mass None of the above HintThe charge storage determinants of the capacitor is electrode area and dielectric107). The charge storage determinants of the super capacitor are _______ Electrode area and dielectric Microstructure of electrode and electrolyte Thermodynamics and active mass None of the above HintThe charge storage determinants of the supercapacitor are the microstructure of electrode and electrolyte108). The charge storage determinants of battery is _______ Electrode area and dielectric Microstructure of electrode and electrolyte Thermodynamics and active mass None of the above HintThe charge storage determinants of battery are thermodynamics and active mass109). The discharge time of the battery is ________ 0.1 to 1hr 0.1 to 5hr 0.03 to 3hr 0.09 to 1hr HintThe discharge time of the battery is 0.03 to 3hr110). The charge time of the battery is ________ 0.1 to 1hr 1 to 5hr 0.03 to 3hr 0.09 to 1hr HintThe charge time of the battery is 1 to 5hrs111). What is the standard form of GCD? Galvanostatic Charge/Discharge Galvanostatic Capacitor Discharge Galvanostatic Discharge None of the above HintThe standard form of GCD is Galvanostatic Charge/Discharge 112). The charge time of lithium-ion is _________ 10-20minutes 10-40minutes 10-50minutes 10-60minutes HintThe charge time of lithium-ion is 10-60minutes113). The cell voltage of lithium-ion is _________ 2 to 5V 2 to 9V 3.6 to 3.7V 2 to 15V HintThe cell voltage of lithium-ion is 3.6 to 3.7V114). The cell voltage of super capacitor is _________ 2 to 5V 2.3 to 2.7V 3.6 to 3.7V 2 to 15V HintThe cell voltage of super capacitor is 2.3 to 2.7V115). The service life of lithium-ion is ______ 5 years 10 years 15years 5-10years HintThe service life of lithium-ion is 5-10years116). The advantages of polystyrene capacitor is _________ Low leakage Low distortion High insulation All of the above HintThe polystyrene capacitors have low leakage, low distortion, and high insulation117). The disadvantages of polystyrene capacitor is _________ Not heat resistance Good temperature stability Low dielectric absorption All of the above HintThe polystyrene capacitors are not heat resistance, and it has low dielectric absorption and good temperature stability118). The dielectric constant value of polystyrene capacitors is _______ 1-2 2.5-2.6 3-4 4-5 HintThe dielectric constant value of polystyrene capacitors is between 2.5-2.6119). The dielectric constant value of mica capacitors is _______ 1-2 6 3-4 4-5 HintThe dielectric constant value of mica capacitors is 6120). The mica capacitors categorized into _________ types One Two Three Four HintThe mica capacitors categorized into two types they are damped mica capacitor and silver mica capacitor121). The mica capacitors used in __________ Radio or TV transmitters Coupling circuits Resonant circuits All of the above HintThe mica capacitors used in radio or TV transmitters, coupling and resonant circuits, etc122). The properties of mica capacitor are __________ High accuracy High Q Temperature coefficient All of the above HintThe mica capacitors are temperature coefficient, and it has high accuracy and high Q123). Which one is used as a dielectric in silver mica capacitor? Silver Mica Both a and b None of the above HintMica is used as a dielectric in silver mica capacitor124). The characteristics of mica capacitors are ________ Low losses Stability Accuracy and tolerance All of the above HintLow losses, stability, accuracy, and tolerance are the characteristics of mica capacitors 125). The capacitors _______ Stops DC Allows AC to pass Stores voltage in the form of the dielectric field All of the above HintThe capacitors stop DC but it allows AC to pass and it stores voltage in the form of a dielectric fieldCapacitors MCQs for Engineers126). The function of capacitor in a circuit is _______ Prevent the loss of information AC/DC conversion, reactive power control Electric charge storage All of the above HintThe function of a capacitor in a circuit is to prevent loss of information, ac/dc conversion, reactive power control, and electric charge storage127). The advantages of ceramic capacitor is _______ Available in both SMD and lead packages Frequency performance is high Cheap to manufacture All of the above HintThe advantages of ceramic capacitors are they are available in both SMD and lead packages, the frequency performance is high, and it is cheap to manufacture128). In transistor circuits _______ capacitor is used Mica Paper Ceramic None of the above HintIn transistor circuits ceramic capacitor is usedRead more about Transistors129). The dielectric material in air gap trimmer capacitors is _____ SF6 Air Mica None of the above HintThe dielectric material in air gap trimmer capacitors is air130). The dielectric material in SF6 gas-filled tunning capacitors is _____ SF6 Air Mica None of the above HintThe dielectric material in SF6 gas-filled tunning capacitors is SF6131). The dielectric material in glass capacitors is _____ SF6 Air Glass None of the above HintThe dielectric material in glass capacitors is glass Read more about Dielectric Materials132). The wet tantalum capacitors used in _______ Space Avionics Consumer applications All of the above HintThe wet tantalum capacitors used in space, avionics, and consumer applications, etc133). Which one is used as dielectric in tantalum capacitors? Niobium pentoxide Manganese dioxide Tantalum pentoxide All of the above HintNiobium pentoxide, manganese dioxide, and tantalum pentoxides are used as dielectric in tantalum capacitors134). In a capacitor, the relation between voltage and current is ______ I=C dv/dt I=2C dv/dt C=I dv/dt None of the above HintIn a capacitor, the relation between voltage and current is I=C dv/dt135). The capacitor act as short circuit for _________ Low frequencies High frequencies Both a and b None of the above HintThe capacitor act as a short circuit for high frequencies Read more about Capacitors136). The capacitor act as an open circuit for _________ Low frequencies High frequencies Both a and b None of the above HintThe capacitor act as an open circuit for low frequencies 137). The capacitors ____________ in an exponential manner Discharge and charge Only charge Only discharge None of the above HintThe capacitors discharge and charge in an exponential manner138). The dielectric constant of air is ________ Unity One Zero Infinity HintThe dielectric constant of air is unity139). When capacitors connected in series ______ remains same and _______ varies Charge, voltage Voltage, charge Capacitance, reactance None of the above HintWhen capacitors connected in series charge remains same and voltage varies140). For _____________ charge the gauss law is applicable Sheet charge Point charge Line charge All of the above HintFor sheet charge, point charge, and the line charge the gauss law is applicable141). The flux density increases when charge _____ Increases Decreases Constant Varies HintThe flux density increases when charging increases143). The ratio of actual to absolute permittivity is known as a _______ permittivity Relative Actual Absolute None of the above HintYes, the ratio of actual to absolute permittivity is known as a relative permittivity144). When actual permittivity decreases the relative permittivity __________ Decreases Increases Constant None of the above HintWhen actual permittivity decreases the relative permittivity decreases145). If relative permittivity increases the absolute permittivity __________ Remains the same Increases Decreases None of the above HintIf relative permittivity increases the absolute permittivity remains the same146). There is no unit for the ____________ permittivity Absolute Relative Actual None of the above HintThere is no unit for the relative permittivity147). While the capacitor is charging the final current of a capacitor is ________ One Zero Infinity None of the above HintWhile the capacitor is charging the final current of a capacitor is zero148). While the capacitor is charging the initial current of a capacitor is very high True False HintYes, while the capacitor is charging the initial current of a capacitor is very high149). The capacitor acts as an ______ circuit at DC Only open Only close Both open and close None of the above HintThe capacitor acts as an open circuit at DC150). The aluminum electrolyte capacitors are not suitable for ________ Coupling Decoupling Attenuation All of the above HintThe aluminum electrolyte capacitors are not suitable for coupling, decoupling, and attenuation Time is Up! Time's up
