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. 1). ___________ stores chargeCapacitorsResistorsBoth a and bNone of the aboveHintCapacitors stores charge 2). The parallel metal plates of the capacitor separated by ________InsulatorsIsolatorsBoth a and bNone of the aboveHintThe parallel metal plates of the capacitor separated by insulators 3). The nominal capacitance of the paper capacitors is around ________0.1uF to 10uF0.01uF to 10uF0.001uF to 10uF0.5uF to 10uFHintThe nominal capacitance of the paper capacitors is around 0.001uF to 10uF 4). The working voltage of the paper capacitors is around ________100v to 200v200v to 300v300v to 600v200v to 600vHintThe working voltage of the paper capacitors is around 200v to 600v 5). 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/cHintThe temperature coefficient of the paper capacitors is ±800 deg/c 7). The disadvantage of the paper capacitor is _______SizeSuspectible and hygroscopic to moistureBoth a and bNone of the aboveHintThe disadvantage of the paper capacitor is large in size, susceptible, and hygroscopic to moisture 8). The advantage of the paper capacitor is _______Low costVoltage rating is highStableAll of the aboveHintThe paper capacitor is low cost, stable, and the voltage rating is high 9). 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?OneTwoThreeFourHintThe capacitor consists of two conductors 12). The capacitance measured in ______WattsHenryFaradsNone of the aboveHintThe capacitance measured in farads 13). The dielectric materials increase the ________CapacitanceResistivityBoth a and bNone of the aboveHintThe dielectric materials increase the capacitance 14). Capacitor obey _________ lawCoulombsOhms lawKirchhoffs lawAll of the aboveHintThe capacitor obeys coulombs law 15). The relationship between frequency, capacitance, and capacitor reactance is given by _____Capacitance reactance=1/2πfcCapacitance reactance=1/2πfCapacitance reactance=1/2fcCapacitance reactance=1/4πfcHintThe relationship between frequency, capacitance, and capacitor reactance is given by 1/2πfc 16). The capacitors categorized into _______ groupsOneTwoThreeFourHintThe capacitors are categorized into two groups they are polarized and non-polarized capacitors 17). Which one is a polarized capacitor?Electrolytic capacitorCeramic capacitorSilver capacitorTeflon capacitorHintElectrolytic capacitor is a polarized capacitor 18). Which one is a non-polarized capacitor?Polystyrene capacitorCeramic capacitorTeflon capacitorAll of the aboveHintPolystyrene capacitor, ceramic capacitor, Teflon capacitors are non-polarized capacitors 19). _________ are the dielectric materialsAir or VaccumRubber, oil, paperMica, glass, ceramicAll of the aboveHintAir or Vaccum, rubber, oil, paper, mica, glass, ceramic, etc are the dielectric materials 20). What is the standard unit of electric charge?WattsHenryFaradsCoulombsHintCoulombs is the standard unit of electric charge 21). To store the electric charge the ultra-capacitors uses ______ effectSingle layerDouble layerBoth a and bNone of the aboveHintTo store the electric charge the ultra-capacitors use double-layer effect 22). The advantages of ultra-capacitors are _______Long lifeTransient response is fastEfficiency is highAll of the aboveHintThe 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 farad200 farad to 5000 farad300 farad to 5000 farad400 farad to 5000 faradHintThe capacitance range of supercapacitors is from 100 farads to 5000 farads 24). The supercapacitors are also known as ________UltracapacitorsElectrical double-layer capacitorsUltra or electrical double-layer capacitorsNone of the aboveHintThe supercapacitors are also known as ultracapacitors or electrical double-layer capacitors 25). The hybrid capacitors are categorized into ______OneTwoThreeFourHintThe hybrid capacitors are categorized into three types they are composite hybrids, asymmetric hybrids, and battery type hybridsCapacitors MCQs for Students 26). The conducting polymers and metal oxides are ____________ capacitorsHybridDouble layerPseudoNone of the aboveHintThe conducting polymers and metal oxides are pseudocapacitors 27). The activated carbons, carbon nanotubes, carbon aerogels are _______ type of capacitorsHybridDouble layerPseudoNone of the aboveHintThe activated carbons, carbon nanotubes, carbon aerogels are double-layer capacitors 28).The disadvantages of supercapacitors are ________Cost is highHave a high self-discharge rateCannot be used in AC and high-frequency circuitsAll of the aboveHintThe supercapacitors are high cost, and it has high self-discharge rate, and it cannot be used in AC and high-frequency circuits 29). Which one is a variable capacitor?Ceramic trimmer capacitorAir gap capacitorVaccum capacitorAll of the aboveHintA ceramic trimmer capacitor is a variable capacitor 30). Which one is a type of miscellaneous capacitor?SupercapacitorsAir gap capacitorsHybrid capacitorsAll of the aboveHintAir gap capacitors are a type of miscellaneous capacitor 31). The supercapacitors are categorized into __________OneTwoThreeFourHintThe 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 capacitorPaper film/foil power capacitorPP film/foil power capacitorAll of the aboveHintMetalized paper power capacitor, paper film/foil power capacitor, and pp film/foil power capacitor are film based capacitors 33). The minimum film thickness of polyester is ___0.1-0.9µm0.2-0.9µm0.4-0.9µm0.7-0.9µmHintThe minimum film thickness of polyester is 0.7-0.9µm 34). The minimum film thickness of polyethylene sulfide is ___0.1µm0.2µm1.2µm0.7µmHintThe minimum film thickness of polyethylene sulfide is 1.2µm 35). The minimum film thickness of polyethylene naphthalate is ___0.1-0.9µm0.2-0.9µm0.4-0.9µm0.9-1.4µmHintThe minimum film thickness of polyethylene naphthalate is 0.9-1.4µm 36). The capacitance range of polyester is ____________100PF to 22µF100PF to 2µF100PF to 32µF100PF to 42µFHintThe capacitance range of polyester is 100PF to 22µF 37). The capacitance range of polyethylene naphthalate is ____________100PF to 22µF100PF to 1µF100PF to 32µF100PF to 42µFHintThe capacitance range of polyethylene naphthalate is 100PF to 1µF 38). The capacitance range of polyethylene sulfide is ____________100PF to 22µF100PF to 1µF100PF to 0.47µF100PF to 42µFHintThe capacitance range of polyethylene sulfide is 100PF to 0.47µF 39). The capacitance range of polypropylene is ____________100PF to 22µF100PF to 10µF100PF to 0.47µF100PF to 42µFHintThe capacitance range of polypropylene is 100PF to 10µF 40). The dielectric strength of polyester is ________580V/µm780V/µm880V/µm980V/µmHintThe dielectric strength of polyester is 580V/µm 41). The dielectric strength of polyethylene napthalate is ________500V/µm780V/µm880V/µm980V/µmHintThe dielectric strength of polyethylene napthalate is 500V/µm 42). The dielectric strength of polyphenylene sulfide is ________470V/µm780V/µm880V/µm980V/µmHintThe dielectric strength of polyphenylene sulfide is 470V/µm 43). The dielectric strength of polypropylene is ________470V/µm780V/µm650V/µm980V/µmHintThe dielectric strength of polypropylene is 650V/µm 44). The electrolytic capacitors are categorized into _______ families according to their dielectricOneTwoThreeFourHintThe electrolytic capacitors are categorized into three families according to their dielectric they are aluminum, tantalum, niobium electrolytic capacitors 45). The ____________ capacitors are fixed capacitorsNon-polarizedPolarizedBoth a and bNone of the aboveHintThe non-polarized capacitors are fixed capacitors 46). Niobium oxide capacitor is a type of ________ capacitorSolid electrolytePolyesterPseudoNone of the aboveHintNiobium oxide capacitor is a type of solid electrolyte capacitor 47). Which capacitor do stores charge electrochemically?Double-layer capacitorsPseudo capacitorsHybrid capacitorsAll of the aboveHintPseudo capacitor stores charge electrochemically 48). The polyester capacitors are categorized into ________ typesOneTwoThreeFourHintThe polyester capacitors are categorized into two types they are metalized film and foil capacitors 49). The maximum capacitor value of super capacitor is ________5000F10000F1200F12000FHintThe maximum capacitor value of super capacitor is 12000F 50). Which type of energy does the capacitor store?KineticPotentialBoth a and bNone of the aboveHintCapacitor stores potential energyCapacitors MCQs for Interviews 51). After long time capacitor blocks ________DCACBoth a and bNone of the aboveHintAfter a long time capacitor blocks DC 52). The DC voltage range of polyester is _______10-50V20-50V50-100V50-1000VHintThe DC voltage range of polyester is 50-1000V 53). The DC voltage range of polyethylene napthalate is _______10-50V20-50V50-100V16-250VHintThe DC voltage range of polyethylene napthalate is 16-250V 54). The DC voltage range of polypropylene is _______10-50V16-100V50-100V50-1000VHintThe DC voltage range of polypropylene is 16-100V 55). The DC voltage range of polyphenylene sulfideis _______40-2000V16-250V50-100V50-1000VHintThe DC voltage range of polyphenylene sulfide is 40-2000V 56). Which capacitor do stores charge electro statically?Double-layer capacitorsPseudo capacitorsHybrid capacitorsAll of the aboveHintDouble-layer capacitors stores charge electro-statically 57). ______ is a passive deviceCapacitorTransistorBoth a and bNone of the aboveHintThe capacitor is a passive device 58). The metals have _________Low capacitanceHigh capacitanceHigh resistivityNone of the aboveHintThe metals have high capacitance 59). In transistor circuits _________ capacitors are usedCeramicAirHybridNone of the aboveHintIn transistor circuits ceramic capacitors are used 60). Which capacitor do stores charge electrochemically and electro-statically?Double-layer capacitorsPseudo capacitorsHybrid capacitorsAll of the aboveHintHybrid capacitors stores charge electrochemically and electro-statically 61). _________ capacitors are used for tuning, radiofrequency coupling, and audio frequencyMicaAirCeramicNone of the aboveHintMica capacitors are used for tuning, radiofrequency coupling, and audio frequency 62). ___________ capacitors are used in communication transmittersElectrolyteVariableAirNone of the aboveHintVariable capacitors are used in communication transmitters 63). The value range of ceramic capacitors is from __________Few picofarads to 0.1 microfaradsFew picofarads to 3 microfaradsFew picofarads to 10 microfaradsNone of the aboveHintThe value range of ceramic capacitors is from few picofarads to 0.1 microfarads 64). The features of micro capacitors are _______Low toleranceVery accurateLow resistive inductive lossesAll of the aboveHintThe features of micro capacitors are low tolerance, very accurate, and low resistive inductive losses 65). The features of ceramic capacitors are ______Low capacitance per unit volumeLow loss factorReasonable level of stabilityAll of the aboveHintThe features of ceramic capacitors are low capacitance per unit volume, low loss factor, and a reasonable level of stability 66). The features of paper capacitors are _________Low capacitanceHigh working voltage and currentHigh leakage ratesAll of the aboveHintThe features of paper capacitors are low capacitance, high working voltage and current, and high leakage rates 67). The features of thin-film capacitors ___________High stability, low costLow losses even at high frequenciesLong shelf lifeAll of the aboveHintThe features of thin-film capacitors high stability, low cost, low losses even at high frequencies, and long shelf life 68). The frequency of electrolytic capacitor are ________Limited frequency responseHigh capacitance and voltage ranges are availableHigh leakage current and agingAll of the aboveHintThe frequency of electrolytic capacitor are limited frequency response, high capacitance and voltage ranges are available, and high leakage current and aging 69). The tantalum _________Allows large current to passReliable and stable over timeBoth a and bNone of the aboveHintThe tantalum allows a large current to pass, reliable, and stable over time 70). The charging time of super capacitors is _______1-2seconds2-5seconds1-8seconds1-10secondsHintThe charging time of super capacitors is 1-10seconds 71). The service life of supercapacitors is _______1-2seconds2-5seconds10-15seconds1-10secondsHintThe service life of supercapacitors is 10-15seconds 72). The capacitors used in _________Energy storage systemsSignal processing devicesFilter applicationsAll of the aboveHintThe capacitors used in energy storage systems, signal processing devices, filter applications, etc 73). Based on the dielectric materials the SMD capacitors categorized into ______ typesOneTwoThreeFourHintBased on the dielectric materials the SMD capacitors categorized into three types they are multilayer ceramic, tantalum, and electrolytic capacitors 74). The advantages of SMD capacitors are __________Small in sizeLess costHigh performanceAll of the aboveHintThe advantages of SMD capacitors are small in size, less cost, and high performance 75). The disadvantages of SMD capacitors are ________Low heat capacityDue to its size the manual operation is difficultBoth a and bNone of the aboveHintThe disadvantages of SMD capacitors are low heat capacity and due to its size the manual operation is difficultCapacitors MCQs for Exams 76). What is the standard form of SMD capacitor?Simple Multilayer DeviceSurface Multilayer DeviceSurface Mount DeviceNone of the aboveHintThe standard form of SMD capacitor is Surface Mount Device 77). The ceramic capacitors used in _________Printed circuit boardsTransmitter stationsPower circuit breakersAll of the aboveHintThe ceramic capacitors used in printed circuit boards, transmitter stations, power circuit breakers, etc 78). The polyester capacitors used in __________DC applicationsSmall sizeMost cost-effectiveAll of the aboveHintThe polyester capacitors used in dc applications, small in size, and most cost-effective 79). 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/mm4-10Kv/mm6-10Kv/mm8-10Kv/mmHintThe dielectric strength of barium titanate is 2-10Kv/mm 83). The dielectric strength of paper is ___________10Kv/mm14Kv/mm60Kv/mm80Kv/mmHintThe dielectric strength of paper is 14Kv/mm 84). The dielectric strength of glass is ___________10Kv/mm15Kv/mm60Kv/mm80Kv/mmHintThe dielectric strength of glass is 15Kv/mm 85). The dielectric strength of mica is ___________63Kv/mm15Kv/mm60Kv/mm80Kv/mmHintThe dielectric strength of mica is 63Kv/mm 86). 100 PF is equal to ________0.1nF0.9nF0.10nF0.8nFHint100 PF is equal to 0.1nF 87). 1000 PF is equal to ________1nF0.9nF0.10nF0.8nFHint1000 PF is equal to 1nF 88). 100 nF is equal to ________1µF0.1µF0.10µF0.8µFHint100 nF is equal to 0.1µF 89). The relative permittivity is defined as the ratio of _____________Electric flux density divided by electric field strengthFalseElectric field strength divided by electric flux densityElectric field strength divided by dielectric flux densityNone of the aboveHintThe relative permittivity is defined as the ratio of electric flux density divided by electric field strength 90). The paper capacitors used in ______ applicationsHigh currentHigh voltageBoth a and bNone of the aboveHintThe paper capacitors used in high current and high voltage applications 91). Which one is a type of film capacitor?AluminumTantalumAxial styleNone of the aboveHintAxial style is a type of film capacitor 92). The nominal capacitance range of niobium electrolyte capacitor is _______1uF to 1200uF1uF to 100uF1uF to 200uF1uF to 1500uFHintThe nominal capacitance range of niobium electrolyte capacitor is 1uF to 1500uF 93). The working voltage of niobium electrolytic capacitor is from _________1V to 10V10V to 16V1V to 19V1V to 20VHintThe working voltage of niobium electrolytic capacitor is from 10V to 16V 94). The disadvantage of the niobium electrolytic capacitor is _____________Low voltage ratingHigh operating lossesBoth a and bNone of the aboveHintThe disadvantage of the niobium electrolytic capacitor is voltage rating is low and the operating losses are high 95). The advantage of niobium electrolytic capacitor is _____________Low costReliableHigh volumetric capacitanceAll of the aboveHintThe advantage of niobium electrolytic capacitor is low cost, reliable, and high volumetric capacitance 96). The nominal capacitance of tantalum electrolytic capacitor is from _______0.1uF to 1000uF0.9uF to 1000uF0.7uF to 1000uF0.8uF to 1000uFHintThe nominal capacitance of tantalum electrolytic capacitor is from 0.1uF to 1000uF 97). The working voltage of tantalum electrolytic capacitor is from _______3V to 100V2V to 100V6V to 100V1V to 100VHintThe working voltage of the tantalum electrolytic capacitor is from 6V to 100V 98). 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 47000uF0.9uF to 1000uF0.7uF to 1000uF0.8uF to 1000uFHintThe nominal capacitance of an aluminum electrolytic capacitor is from 0.1uF to 47000uF 100). What is the standard form of EDLC?Electrode Double Layer CapacitorElectric Double Layer CapacitorElectric/electrochemical Double Layer CapacitorNone of the aboveHintThe standard form of EDLC is Electric/electrochemical Double Layer CapacitorCapacitors MCQs for Quiz 101). The electric/electrochemical double-layer capacitor works on _______ layer capacitance principleSingleDoubleBoth a and bNone of the aboveHintThe electric/electrochemical double-layer capacitor works on the double-layer capacitance principle 102). The electrolyte is used as a ______ in electrolyte capacitorsConductorInsulatorIsolatorNone of the aboveHintThe electrolyte is used as a conductor in electrolyte capacitors 103). 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 dielectricMicrostructure of electrode and electrolyteThermodynamics and active massNone of the aboveHintThe charge storage determinants of the capacitor is electrode area and dielectric 107). The charge storage determinants of the super capacitor are _______Electrode area and dielectricMicrostructure of electrode and electrolyteThermodynamics and active massNone of the aboveHintThe charge storage determinants of the supercapacitor are the microstructure of electrode and electrolyte 108). The charge storage determinants of battery is _______Electrode area and dielectricMicrostructure of electrode and electrolyteThermodynamics and active massNone of the aboveHintThe charge storage determinants of battery are thermodynamics and active mass 109). The discharge time of the battery is ________0.1 to 1hr0.1 to 5hr0.03 to 3hr0.09 to 1hrHintThe discharge time of the battery is 0.03 to 3hr 110). The charge time of the battery is ________0.1 to 1hr1 to 5hr0.03 to 3hr0.09 to 1hrHintThe charge time of the battery is 1 to 5hrs 111). What is the standard form of GCD?Galvanostatic Charge/DischargeGalvanostatic Capacitor DischargeGalvanostatic DischargeNone of the aboveHintThe standard form of GCD is Galvanostatic Charge/Discharge 112). The charge time of lithium-ion is _________10-20minutes10-40minutes10-50minutes10-60minutesHintThe charge time of lithium-ion is 10-60minutes 113). The cell voltage of lithium-ion is _________2 to 5V2 to 9V3.6 to 3.7V2 to 15VHintThe cell voltage of lithium-ion is 3.6 to 3.7V 114). The cell voltage of super capacitor is _________2 to 5V2.3 to 2.7V3.6 to 3.7V2 to 15VHintThe cell voltage of super capacitor is 2.3 to 2.7V 115). The service life of lithium-ion is ______5 years10 years15years5-10yearsHintThe service life of lithium-ion is 5-10years 116). The advantages of polystyrene capacitor is _________Low leakageLow distortionHigh insulationAll of the aboveHintThe polystyrene capacitors have low leakage, low distortion, and high insulation 117). The disadvantages of polystyrene capacitor is _________Not heat resistanceGood temperature stabilityLow dielectric absorptionAll of the aboveHintThe polystyrene capacitors are not heat resistance, and it has low dielectric absorption and good temperature stability 118). The dielectric constant value of polystyrene capacitors is _______1-22.5-2.63-44-5HintThe dielectric constant value of polystyrene capacitors is between 2.5-2.6 119). The dielectric constant value of mica capacitors is _______1-263-44-5HintThe dielectric constant value of mica capacitors is 6 120). The mica capacitors categorized into _________ typesOneTwoThreeFourHintThe mica capacitors categorized into two types they are damped mica capacitor and silver mica capacitor 121). The mica capacitors used in __________Radio or TV transmittersCoupling circuitsResonant circuitsAll of the aboveHintThe mica capacitors used in radio or TV transmitters, coupling and resonant circuits, etc 122). The properties of mica capacitor are __________High accuracyHigh QTemperature coefficientAll of the aboveHintThe mica capacitors are temperature coefficient, and it has high accuracy and high Q 123). Which one is used as a dielectric in silver mica capacitor?SilverMicaBoth a and bNone of the aboveHintMica is used as a dielectric in silver mica capacitor 124). The characteristics of mica capacitors are ________Low lossesStabilityAccuracy and toleranceAll of the aboveHintLow losses, stability, accuracy, and tolerance are the characteristics of mica capacitors 125). The capacitors _______Stops DCAllows AC to passStores voltage in the form of the dielectric fieldAll of the aboveHintThe capacitors stop DC but it allows AC to pass and it stores voltage in the form of a dielectric fieldCapacitors MCQs for Engineers 126). The function of capacitor in a circuit is _______Prevent the loss of informationAC/DC conversion, reactive power controlElectric charge storageAll of the aboveHintThe function of a capacitor in a circuit is to prevent loss of information, ac/dc conversion, reactive power control, and electric charge storage 127). The advantages of ceramic capacitor is _______Available in both SMD and lead packagesFrequency performance is highCheap to manufactureAll of the aboveHintThe advantages of ceramic capacitors are they are available in both SMD and lead packages, the frequency performance is high, and it is cheap to manufacture 128). In transistor circuits _______ capacitor is usedMicaPaperCeramicNone of the aboveHintIn transistor circuits ceramic capacitor is usedRead more about Transistors 129). The dielectric material in air gap trimmer capacitors is _____SF6AirMicaNone of the aboveHintThe dielectric material in air gap trimmer capacitors is air 130). The dielectric material in SF6 gas-filled tunning capacitors is _____SF6AirMicaNone of the aboveHintThe dielectric material in SF6 gas-filled tunning capacitors is SF6 131). The dielectric material in glass capacitors is _____SF6AirGlassNone of the aboveHintThe dielectric material in glass capacitors is glass Read more about Dielectric Materials 132). The wet tantalum capacitors used in _______SpaceAvionicsConsumer applicationsAll of the aboveHintThe wet tantalum capacitors used in space, avionics, and consumer applications, etc 133). Which one is used as dielectric in tantalum capacitors?Niobium pentoxideManganese dioxideTantalum pentoxideAll of the aboveHintNiobium pentoxide, manganese dioxide, and tantalum pentoxides are used as dielectric in tantalum capacitors 134). In a capacitor, the relation between voltage and current is ______I=C dv/dtI=2C dv/dtC=I dv/dtNone of the aboveHintIn a capacitor, the relation between voltage and current is I=C dv/dt 135). The capacitor act as short circuit for _________Low frequenciesHigh frequenciesBoth a and bNone of the aboveHintThe capacitor act as a short circuit for high frequencies Read more about Capacitors 136). The capacitor act as an open circuit for _________Low frequenciesHigh frequenciesBoth a and bNone of the aboveHintThe capacitor act as an open circuit for low frequencies 137). The capacitors ____________ in an exponential mannerDischarge and chargeOnly chargeOnly dischargeNone of the aboveHintThe capacitors discharge and charge in an exponential manner 138). The dielectric constant of air is ________UnityOneZeroInfinityHintThe dielectric constant of air is unity 139). When capacitors connected in series ______ remains same and _______ variesCharge, voltageVoltage, chargeCapacitance, reactanceNone of the aboveHintWhen capacitors connected in series charge remains same and voltage varies 140). For _____________ charge the gauss law is applicableSheet chargePoint chargeLine chargeAll of the aboveHintFor sheet charge, point charge, and the line charge the gauss law is applicable 141). The flux density increases when charge _____IncreasesDecreasesConstantVariesHintThe flux density increases when charging increases 143). The ratio of actual to absolute permittivity is known as a _______ permittivityRelativeActualAbsoluteNone of the aboveHintYes, the ratio of actual to absolute permittivity is known as a relative permittivity 144). When actual permittivity decreases the relative permittivity __________DecreasesIncreasesConstantNone of the aboveHintWhen actual permittivity decreases the relative permittivity decreases 145). If relative permittivity increases the absolute permittivity __________Remains the sameIncreasesDecreasesNone of the aboveHintIf relative permittivity increases the absolute permittivity remains the same 146). There is no unit for the ____________ permittivityAbsoluteRelativeActualNone of the aboveHintThere is no unit for the relative permittivity 147). While the capacitor is charging the final current of a capacitor is ________OneZeroInfinityNone of the aboveHintWhile the capacitor is charging the final current of a capacitor is zero 148). While the capacitor is charging the initial current of a capacitor is very highTrueFalseHintYes, while the capacitor is charging the initial current of a capacitor is very high 149). The capacitor acts as an ______ circuit at DCOnly openOnly closeBoth open and closeNone of the aboveHintThe capacitor acts as an open circuit at DC 150). The aluminum electrolyte capacitors are not suitable for ________CouplingDecouplingAttenuationAll of the aboveHintThe aluminum electrolyte capacitors are not suitable for coupling, decoupling, and attenuation Time is Up!
