Explore topic-wise MCQs in Network Theory.

This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Network Theory knowledge and support exam preparation. Choose a topic below to get started.

1.

Find the value V2 in the circuit shown below if the current through (3+j4) Ω is zero.

A. 16∠-262⁰
B. 17∠-262⁰
C. 18∠-262⁰
D. 19∠-262⁰
Answer» C. 18∠-262⁰
Discussion
2.

Find the common impedances Z12, Z13, Z21, Z23, Z31, Z32 respectively in the circuit shown below.

A. -j3Ω, 0Ω, -j3Ω, j5Ω, 0Ω, j5Ω
B. j3Ω, 0Ω, -j3Ω, j5Ω, 0Ω, j5Ω
C. j3Ω, 0Ω, -j3Ω, j5Ω, 0Ω,- j5Ω
D. j3Ω, 0Ω, -j3Ω, -j5Ω, 0Ω, j5Ω
Answer» B. j3Ω, 0Ω, -j3Ω, j5Ω, 0Ω, j5Ω
Discussion
3.

Find the values of Z11, Z22, Z33 in the circuit shown below.

A. (4+j3) Ω, (3-j2) Ω, (5-j5) Ω
B. (4+j3) Ω, (3+j2) Ω, (5-j5) Ω
C. (4-j3) Ω, (3-j2) Ω, (5-j5) Ω
D. (4+j3) Ω, (3-j2) Ω, (5+j5 ) Ω
Answer» C. (4-j3) Ω, (3-j2) Ω, (5-j5) Ω
Discussion
4.

Find Z31, Z32, Z33 in the circuit shown below.

A. 0Ω, j6Ω, (4-j6) Ω
B. 0Ω, -j6Ω, (4+j6) Ω
C. 0Ω, -j6Ω, (4-j6) Ω
D. 0Ω, j6Ω, (4+j6) Ω
Answer» B. 0Ω, -j6Ω, (4+j6) Ω
Discussion
5.

Determine Z21, Z22, Z23 in the circuit shown below.

A. 5Ω, (5-j1) Ω, j6 Ω
B. -5Ω, (5-j1) Ω, j6 Ω
C. -5Ω, (5+j1) Ω, j6 Ω
D. -5Ω, (5-j1) Ω, – j6 Ω
Answer» C. -5Ω, (5+j1) Ω, j6 Ω
Discussion
6.

Find Z11, Z12, Z13 obtained from the mesh equations in the circuit shown below.

A. (8+j4) Ω, 5 Ω, 0Ω
B. (8-j4) Ω, 5 Ω, 0Ω
C. (8+j4) Ω, – 5 Ω, 0Ω
D. (8-j4) Ω, -5 Ω, 0Ω
Answer» E.
Discussion
7.

In the circuit shown below. Find the current I2.

A. 0.5∠-90⁰
B. 0.6∠-90⁰
C. 0.7∠-90⁰
D. 0.8∠-90⁰
Answer» C. 0.7∠-90⁰
Discussion
8.

Determine the current I1 in the circuit shown below using mesh analysis.

A. 0.955∠-69.5⁰
B. 0.855∠-69.5⁰
C. 0.755∠-69.5⁰
D. 0.655∠-69.5⁰
Answer» C. 0.755∠-69.5⁰
Discussion
9.

FIND_THE_VALUE_V2_IN_THE_CIRCUIT_SHOWN_IN_QUESTION_9_IF_THE_CURRENT_THROUGH_(3+J4)_‚ÄÖ√Ñ√∂‚ÀÖ√´¬¨‚ÀÇ_IS_ZERO.?$#

A. 16∠-262⁰
B. 17∠-262⁰
C. 18∠-262⁰
D. 19∠-262⁰
Answer» C. 18‚Äö√Ñ√∂‚àö‚Ć‚Äö√тĆ-262‚Äö√Ñ√∂‚àö√ñ‚Äö√†√ª
Discussion
10.

FIND_THE_COMMON_IMPEDANCES_Z12,_Z13,_Z21,_Z23,_Z31,_Z32_RESPECTIVELY_IN_THE_CIRCUIT_SHOWN_IN_QUESTION_8.?$

A. -j3Ω, 0Ω, -j3Ω, j5Ω, 0Ω, j5Ω
B. j3Ω, 0Ω, -j3Ω, j5Ω, 0Ω, j5Ω
C. j3Ω, 0Ω, -j3Ω, j5Ω, 0Ω,- j5Ω
D. j3Ω, 0Ω, -j3Ω, -j5Ω, 0Ω, j5Ω
Answer» B. j3‚Äö√Ñ√∂‚àö√´¬¨‚àÇ, 0‚Äö√Ñ√∂‚àö√´¬¨‚àÇ, -j3‚Äö√Ñ√∂‚àö√´¬¨‚àÇ, j5‚Äö√Ñ√∂‚àö√´¬¨‚àÇ, 0‚Äö√Ñ√∂‚àö√´¬¨‚àÇ, j5‚Äö√Ñ√∂‚àö√´¬¨‚àÇ
Discussion
11.

Determine Z21, Z22, Z23 in the circuit shown in question 5.

A. 5Ω, (5-j1) Ω, j6 Ω
B. -5Ω, (5-j1) Ω, j6 Ω
C. -5Ω, (5+j1) Ω, j6 Ω
D. -5Ω, (5-j1) Ω, – j6 Ω
Answer» C. -5‚Äö√Ñ√∂‚àö√´¬¨‚àÇ, (5+j1) ‚Äö√Ñ√∂‚àö√´¬¨‚àÇ, j6 ‚Äö√Ñ√∂‚àö√´¬¨‚àÇ
Discussion
12.

In the circuit shown in question 3 find the current I2.

A. 0.5∠-90⁰
B. 0.6∠-90⁰
C. 0.7∠-90⁰
D. 0.8∠-90⁰
Answer» C. 0.7‚Äö√Ñ√∂‚àö‚Ć‚Äö√тĆ-90‚Äö√Ñ√∂‚àö√ñ‚Äö√†√ª
Discussion
13.

If there are M meshes, B branches and N nodes including reference node, the number of mesh currents is given as M=?

A. B + (N+1)
B. B + (N-1)
C. B-(N+1)
D. B-(N-1)
Answer» E.
Discussion
14.

If there are M branch currents, then we can write ___________ number of independent equations.

A. M-2
B. M-1
C. M
D. M+1
Answer» D. M+1
Discussion