Nodal Analysis MCQ’s

Electronics & Communication Engineering Network Theory

This set of Network Theory Multiple Choice Questions & Answers (MCQs) focuses on “Nodal Analysis”.

1. In the network shown below, find the voltage at node ‘a’.

network-theory-questions-answers-nodal-analysis-ac-q2

a) 5.22∠104.5⁰
b) 5.22∠-104.5⁰
c) 6.22∠104.5⁰
d) 6.22∠-104.5⁰

2. Determine the voltage at node ‘b’ in the circuit shown below.

network-theory-questions-answers-nodal-analysis-ac-q2

a) -1.34∠-180⁰
b) 1.34∠-180⁰
c) -0.34∠-180⁰
d) 0.34∠-180⁰

3. If there are N nodes in a circuit, then the number of nodal equations that can be formed are?
a) N+1
b) N
c) N-1
d) N-2

4. In the circuit shown below we get a nodal equation as (1/3+1/j4-1/j6)Va—(-1/j6)Vb=x. Find the value of ‘x‘.

network-theory-questions-answers-nodal-analysis-ac-q4

a) (5∠0o)/3
b) – (5∠0o)/3
c) (10∠0o)/3
d) – (10∠0o)/3

5. In the circuit shown below find the power dissipated by 2Ω resistor.

network-theory-questions-answers-nodal-analysis-ac-q6

a) 16.24
b) 17.24
c) 18.24
d) 19.24

6. In the following circuit. Find the power output of the source.

network-theory-questions-answers-nodal-analysis-ac-q6

a) 27
b) 28
c) 29
d) 30

7. Find the value of ‘y’ in the equation –(-1/j6)Va+(1/5+1/j5-1/j6)Vb=y obtained from the following circuit.

network-theory-questions-answers-nodal-analysis-ac-q4

a) (10∠30o)/5
b) -(10∠30o)/5
c) (5∠30o)/5
d) (-5∠30o)/5

8. In the circuit shown below. Determine the power dissipated in 3Ω resistor.

network-theory-questions-answers-nodal-analysis-ac-q6

a) 7.77
b) 8.77
c) 9.77
d) 10.77

9. For the circuit shown below, find the voltage across the resistance RL if RL is infinite.

network-theory-questions-answers-nodal-analysis-ac-q9

a) 3
b) 2
c) 1
d) 0

10. Find the voltage Vab in the circuit shown below.

network-theory-questions-answers-nodal-analysis-ac-q9

a) 21.66∠-45.02⁰
b) 20.66∠-45.02⁰
c) 21.66∠45.02⁰
d) 20.66∠45.02⁰

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