300+ TOP MCQs on Kirchhoffs Law and Answers

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MCQs on Kirchhoffs Law :

1. Calculate the voltage across the 5ohm resistor
(A) 12 V
(B) 4 V
(C) 10 V
(D) 0 V

Answer

Answer: (B) 4 V

2. Which basic law should be followed to analyse the circuit?

(A) Newton’s law
(B) Faraday’s law
(C) Amperes law
(D) Kirchoff’s law

Answer

Answer: (D) Kirchhoff’s law

3. Calculate the value of V1 and V2
(A) 4V, 6V
(B) 5V,6V
(C) 6V, 7V
(D) 7V, 8V

Answer

Answer: (A) 4V, 6V

4. In Kirchhoff’s first law Σi = 0 at the junction is based on the conservation of
(A) Energy
(B) Charge
(C) Momentum
(D) Speed

Answer

Answer: (B) Charge

5. In the circuit shown below what will be the reading in the voltmeter
(A) 2 V
(B) 1 V
(C) 0.5 V
(D) Zero

Answer

Answer: (D) Zero

6. What is the relation between currents in the figure below
(A) i2 = i1 + i3 + i4 +i5
(B) i2 – i1 = i3 – i4 +i5
(C) i3 +i4 =i1+i2+i5
(D) I1+i5 =i2+i3+i4

Answer

Answer: (A) i2 = i1 + i3 + i4 +i5

7. The algebraic sum of voltages around any closed path in a network is equal to
(A) Infinity
(B) 1
(C) 0
(D) Negative polarity

Answer

Answer: (C) zero

8. Kirchhoff’s Current Law is based on
(A) The charge can be accumulated at the node
(B) Charge cannot be accumulated at the node
(C) Energy is stored at the node
(D) Depending on the circuit charge can be accumulated at the circuit

Answer

Answer: (B) Charge cannot be accumulated at the node

9. The terminal potential difference will be greater than its emf when it is
(A) In open circuit
(B) Being charged
(C) Being charged or discharged
(D) Being discharged

Answer

Answer: (B) Being charged

10. When the cells are connected in parallel, then
(A) The current increases
(B) The current decreases
(C) The emf increases
(D) The emf decreases

Answer

Answer: (A) The current increases