Kirchhoff Law Question & Answers November 28, 2022 By WatElectronics This article lists 50 Kirchhoff's Law MCQs for engineering students. All the Kirchhoff's Law Questions & Answers given below include a hint and a link wherever possible to the relevant topic. This is helpful for users who are preparing for their exams, or interviews, or professionals who would like to brush up on the fundamentals of Kirchhoff's Law. Laws dealing with the currents and potential differences in lumped element models of the electrical circuits are known as Kirchhoff's Circuit Laws. A physicist in Germany named Gustave Kirchhoff was the first to describe these laws. These laws are widely utilized in Electrical engineering. Kirchhoff's Laws are also referred to as Kirchhoff's Rules in analyzing electrical circuitry. In both frequency and time domains, these laws are applied and lay the network analysis base. For the circuits of AC and DC these laws remain accurate but the frequency where EM wavelengths are greater in comparison with circuits. The first law of Kirchhoff deals with the current entered at junctions and is also referred to as Kirchoff's Law of current or Kirchhoff's Junction Rule. Any Electrical circuitry with a junction must have the ‘summation of current entered at the junction equivalent to the summation of current left the junction’. The second law of Kirchhoff's deals with the potential differences or voltage flowing in the loop i.e. closed. It is also referred to as Kirchhoff's Voltage Law or Kirchhoff's Loop Rule. As per this law 'Sum of potential differences around any loop i.e., closed is 0'. To apply these laws and analyze circuits model must be applied to the respective circuit otherwise laws are not applied. 1). Which law is used in analysing circuits? Faradays Law Kirchhoff’s Law Biot Savarts Law Ohms Law Hint 2). Kirchhoff's law is used in the calculation of __________ in AC? Impedances Current Flow Voltage All Mentioned Above Hint 3). What is Kirchhoff’s first law? Kirchhoff’s Law of Current Kirchhoff’s Voltage Law Kirchhoff’s Loop Rule Kirchhoff’s Impedance Hint 4). Total currents at the junction are equivalent to ___________________? Sum of Currents Inside Junction Sum of Currents Outside Junction a & b None Hint 5). If the loop is closed then voltage sums is equivalent to _____________? Zero Positive Negative Fluctuates Among Positive & Negative Hint 6). Total current entered at the junction is equivalent to ___________? Charge Left the Junction Charge Applied at Junction Charge Added at Junction Charge Present in Junction Hint 7). Current entered and left the junction or node is ____________? Zero Positive Negative Fluctuates Among Positive & Negative Hint 8). _____________ is the junction connected with multiple routes carrying currents? Node Point Centre Anode Hint 9). Parallel Circuits are analysed using ___________? Kirchhoff’s Law of Current Kirchhoff’s Voltage Law Kirchhoff’s Loop Rule Kirchhoff’s Impedance Hint 10). Series circuits can be analysed using _____________? Kirchhoff’s Law of Current Kirchhoff’s Voltage Law Kirchhoff’s Junction Rule Kirchhoff’s Impedance Hint 11). Algebraic currents sum in the conductor’s network meeting at certain points is _________? Zero Positive Negative Fluctuates Among Positive & Negative Hint 12). Which law is obtained from the results of the experiment? Faradays Law Kirchhoff’s Law Biot Savarts Law Ohms Law Hint 13). Which is the extension for ‘Conservation of Charge’? Kirchhoff’s Law of Current Kirchhoff’s Voltage Law Kirchhoff’s Loop Rule Kirchhoff’s Impedance Hint 14). How the current flowed in a circuit is determined using? Faradays Law Kirchhoff’s Law Biot Savarts Law Ohms Law Hint 15). Which law is the consequence of both energy and charge consequences? Kirchhoff’s Law of Current Kirchhoff’s Voltage Law Kirchhoff’s Rule of Junction Kirchhoff’s Impedance Hint 16). Current flowing at a point inward must be ________________ to the current flowed outwards from that point? Same Different Distinct Varying Hint 17). As per the figure given write down the equation for the currents flowing through the wires based on Kirchoff Law? I1+I2+ I3 = 0 I1=I2-I3 I1+I2 = I3 I3 = I1-I2 Hint 18). As per the figure given write down the equation for the currents flowing through the wires based on Kirchoff Law? I1+I2+ I3 = 0 I1=I2-I3 I1+I2 = I3 I3 = I1-I2 Hint 19). As per the figure given write down the equation for the currents flowing through the wires based on Kirchhoff Law and find the value of the current? 4 A 6 A 8 A 10 A Hint 20). Which law determines the voltage varied in the circuit around the loop? Faradays Law Kirchhoff’s Law Biot Savarts Law Ohms Law Hint Kirchhoff's Law MCQs for Students 21). Charge carriers flowing through the circuit in the component can _____________electrical energies? Gain Lose a & b Either a or b Hint 22). If the voltages considered around the components as per supply is ________________? Zero Positive Negative Fluctuates Among Positive & Negative Hint 23). As per the given figure calculate the voltage at a 2 Ohm resistor using Kirchhoff's law and conclude that the circuit satisfies the law? 2 V 3 V 4 V 5 V Hint 24). Charge at nodes cannot be accumulated in __________________? Faradays Law Kirchhoff’s Law Biot Savarts Law Ohms Law Hint 25). A _____________ cannot get divided into loops further? Branches Mesh Nodes Terminal Hint 26). What parameters can be calculated based on Kirchoff’s laws? Voltages Currents Temperature a & b Hint 27). Network elements intersecting at a certain point or junction are referred to as ___________? Branches Mesh Nodes Terminal Hint 28). The circuit containing components i.e., active and passive as well as Voltage source can be solved by applying theorems are ___________? Active Circuits Passive Circuits Simple Circuits Complex Circuits Hint 29). What elements are utilized in circuits? Constants Parameters a & b None Hint 30). For ‘N’ nodes equations to be solved in node analysis is ______________? N N+1 N-1 N+2 Hint 31). If a circuit consists of four nodes. How many equations are required as per node analysis? Two Three Four Five Hint 32). Which of these statements satisfies KCL? Charge Accumulated at Node is Zero Positive Charge Accumulated at Node No Charge Accumulated at Node Energy Stored at Node Hint 33). What connects elements in the DC theory of circuits? Loop Path Branch Node Hint 34). What term in DC circuits determines path i.e., closed? Loop Terminal Branch Node Hint 35). What is the purpose of applying Kirchhoff Laws? Determine Currents Determine Potential-drop Determine the Direction of the Current All Mentioned Above Hint 36). Which law is used in Maxwell's method of loop currents? Faradays Law Kirchhoff’s Law Biot Savarts Law Ohms Law Hint 37). Kirchhoff’s laws can be applied for ____________? Linear Circuits Time Invariant Circuits Non-Linear Circuits a & c Hint 38). Which law is applied in lightning LEDs? Faradays Law Kirchhoff’s Law Biot Savarts Law Ohms Law Hint 39). What is the voltage difference among points A & B from the figure given? +10 V -10 V + 11 V – 11 V Hint 40). Nolde voltage method is capable of solving circuits with minimum _________ Equations? Kirchhoff’s Law of Current Kirchhoff’s Voltage Law Kirchhoff’s Loop Rule Kirchhoff’s Impedance Hint Kirchhoff's Law MCQs for Exams 41). Node voltage method is based on _____________? Kirchhoff’s Law of Current Kirchhoff’s Voltage Law Kirchhoff’s Loop Rule Kirchhoff’s Impedance Hint 42). Electric charge in the circuit should be constant to apply ___________? Kirchhoff’s Law of Current Kirchhoff’s Voltage Law Kirchhoff’s Loop Rule Kirchhoff’s Impedance Hint 43). Kirchhoff’s law can be applied to ____________? DC Circuits AC Circuits a & b High-Frequency Circuits Hint 44). Wheatstone bridge is the example of ______________? Faradays Law Kirchhoff’s Law Biot Savarts Law Ohms Law Hint 45). _____________ is not applied for varying magnetic fields? Kirchhoff’s Law of Current Kirchhoff’s Voltage Law Kirchhoff’s Junction Rule Kirchhoff’s Impedance Hint 46). ______________ cannot be applied for higher frequencies circuits of AC? Kirchhoff’s Law of Current Kirchhoff’s Voltage Law a & b Kirchhoff’s Impedance Hint 47). Kirchhoff’s law applied for DC circuits calculate __________? Voltage Internal Resistance Current All Mentioned Above Hint 48). Which law is applied in magnetic field absence? Faradays Law Kirchhoff’s Law Biot Savarts Law Ohms Law Hint 49). Kirchhoff's law is not applicable for _____________? Distributed Parameters Undistributed Parameters Passive Elements Resistances that are Non-linear Hint 50). Which law is used in calculating electrical resistances of complex networks? Faradays Law Kirchoff’s Law Biot Savarts Law Ohms Law Hint For More MCQs Ohms Law Question & Answers Biot Savarts Law Question & Answers Please fill in the comment box below. Time is Up! Time's up