## Kirchhoff’s Law – Definition

The basic purpose of **Kirchhoff’s law** is to analysis and mathematically solve the circuit equivalent **resistance** and **current**. There are two laws of Kirchhoff, first is **Kirchhoff’s Current Law** and second one is **Kirchhoff’s Voltage Law**. It is helpful to solve the circuits of **AC **and** DC**. According to the **KCL**, the algebra sum of the currents at a junction is zero in any network. Otherwise the **KVL**, the algebraic sum of all voltages in a loop must equal to zero. All the **Multiple Choice Questions on Kirchhoff’s Law** are published according to the new study syllabus for academic year **2021-22.**

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The aim is to provide **MCQs on Kirchhoff’s Law **questions and answers to understand the concepts of **electrical circuits** and **Ohm’s law**. If you are willing to learn the concepts of** Basic Electronics** MCQs multiple choice questions with answer then read all the questions and answers. You will be surely able to qualify for all kinds of **Quiz / tests / Interviews** after understanding the **Introduction to Kirchhoff’s Law**. If you are a **students, technician or teacher** then you can learn the basic concept of **Kirchhoff’s Law **applications**,**** **principle and function.

**MCQs on Kirchhoff’s Law ****(Questions and Answers****)**

**Q1. With the help of Kirchhoff’s Current Law (KCL) and Kirchhoff’s Voltage Law (KVL), you can find equivalent ________ and ________ of different conductors.**

- current, frequency
- current, voltage
- resistance, current
- resistance, voltage

**Answer: c**

**Q2. AC and DC both types of circuits can use Kirchhoff’s Law. True / False**

**Answer: True**

**Q3. The first law of Kirchhoff is __________.**

- KCL
- KVL

**Answer: a**

**Q4. In any network, the algebra sum of the currents meeting at a junction point is zero, which is Kirchhoff’s Current Law**. **True / False**

**Answer: True**

**Q5. All the currents are flowing towards junction point and all the currents are leaving from the junction are equal according to the algebra sum of both currents, which is called ________.**

- KCL
- KVL

**Answer: a**

**Q6. In any closed path of a network the algebraic sum of IR is equal to the E.M.F of same path. True / False**

**Answer: True **

**Q7. How can we write the Kirchhoff’s Current Law in mathematically ?**

- Σ IENT= Σ ILEV
- Σ I = 0
- a & b are correct
- none is correct

**Answer: c**

**Q8. In any closed loop the algebraic sum of the EMF is applied is equals to the algebraic sum of the voltage drops in the elements. True / False**

**Answer: True **

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**Q9. It is necessarily to find ______ of current to solve the circuit according to the Kirchhoff’s Laws .**

- value
- direction
- symbol
- speed

**Answer: b**

**Q10. The electric current can pass through open circuit.**** ****True / False**

**Answer: False [ Closed Circuit ]**

**Q11. A circuit consists of active & passive components and voltage sources which is solved through specific theorem is called ______.**

- node
- complex network
- branch
- active network

**Answer: b
**

**Q12. If the parameters of any electric circuit could not changed according to the voltages and currents. ****True / False**

**Answer: True**

**Q13. Different elements (like resistance, inductance and capacitance etc.) are used in the electric circuit is called________.**

- parameters
- constants
- a & b are correct
- none is correct

**Answer: c**

**Q14. A circuit which characteristics are same from both directions is called bilateral circuits. True / False**

**Answer: True**

**Q15. A circuit which parameters are changed according to the voltage and currents is called _______ circuit.**

- bilateral
- linear
- non-linear
- active network

**Answer: c**

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**Q16. A circuit in which different elements are connected with other is called electric network. True / False**

**Answer: True**

**Q17. A circuit which characteristics are changed with the direction of supply is called _______ circuit.**

- non-linear
- passive
- active
- unilateral

**Answer: d**

**Q18. AC circuit which have no e.m.f source that is called passive network. True / False**

**Answer: True**

**Q19. A circuit which have one or more e.m.f sources are available is called _______.**

- active network
- passive network

**Answer: a**

**Q20. A part of any network between the two junctions is called branch. True / False**

**Answer: True**

**Q21. A point in the circuit where two or more circuits elements are combined is called ______ . **

- node
- branch
- junction
- a & b are correct

**Answer: d**

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**Q22. A path/point in any circuit which is not connected with any other point is called Mesh. True / False**

**Answer: True**

**Q23. A closed path in any circuit which have more than two meshes is called _________.**

- branch
- node
- loop
- all are correct

**Answer: c**

**Q24. The other name of equivalent circuit method used for solution of complex network is Network Reduction. True / False**

**Answer: True**

**Q25. _________ method of complex network is used to solve the questions of simple circuits, Kirchhoff’s law, loop analysis, node analysis, super position theorem and Reciprocity Theorem.**

- Direct
- In-direct
- Equivalent
- all are correct

**Answer: a**

**Q26. In the branch current method, to find the value of flowing current in every branch of circuit through KCL and KVL. True / False**

**Answer: True**

**Q27. The method of Kirchhoff’s law is used to solve the questions with _____.**

- branch current method
- node voltage method
- loop/mesh current method
- all are correct

**Answer: d**

**Q28. Node voltage method is used to solve the circuits of multiple sources. True / False**

**Answer: True**

**Q29. The circuits of star, delta star conversion, Thevenin theorem, Norton theorem etc. can be solved through the method of _______.**

- node voltage method
- loop voltage method
- equivalent method
- a & b are correct

**Answer: c**

**Q30. A method of loop current except branch current is used to solve the complex network is called ________.**

- loop current method
- mesh current method
- Kirchhoff’s law
- a & b are correct

**Answer: d**