Circuit Analysis MCQs

Practice Circuit Analysis MCQs with four options, answers and explanations for focused Electronics & Telecommunication Engineering revision.

Question 1

Network TheoryCircuit Analysis

A 20 V source is connected to two series resistors of 4 ohm and 6 ohm. The voltage across the 6 ohm resistor is?

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Correct Answer: C. 12 V

Explanation: By voltage division, V6=20×6/(4+6)=12 V.

Reference: Standard network theory: voltage divider numerical

Question 2

Network TheoryCircuit Analysis

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Correct Answer: B. 3.33 A

Explanation: For two parallel resistors, current through 6 ohm is 10×3/(6+3)=3.33 A.

Reference: Standard network theory: current divider numerical

Question 3

Network TheoryCircuit Analysis

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Correct Answer: A. 1 ohm

Explanation: 1/Req=1/2+1/3+1/6=1, hence Req=1 ohm.

Reference: Standard network theory: parallel resistance numerical

Question 4

Network TheoryCircuit Analysis

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Correct Answer: B. 3 A

Explanation: Using P=I^2R, I=sqrt(36/4)=3 A.

Reference: Standard network theory: resistor power numerical