Test: Coupled Circuits - 2 | 10 Questions MCQ Test Network Theory (Electric Circuits) Electrical Engineering (EE)

QUESTION: 1

In the circuit shown in fig. P1.9.11 if current i₁ = 5 cos (500t - 20 ⁰) mA and i₂= 20 cos (500t - 20⁰) mA, the total energy stored in system at t = 0 is

A.
151.14 μJ
B.
45.24 μJ
C.
249.44 μJ
D.
143.46 μJ

Solution:

QUESTION: 2

L_eq = ?

A.
4 H
B.
6 H
C.
7 H
D.
0 H

Solution:

QUESTION: 3

L_eq = ?

A.
2 H
B.
4 H
C.
6 H
D.
8 H

Solution:

QUESTION: 4

L_eq = ?

A.
8 H
B.
6 H
C.
4 H
D.
2 H

Solution:

QUESTION: 5

L_eq = ?

A.
0.4 H
B.
2 H
C.
1.2 H
D.
6 H

Solution:

QUESTION: 6

The equivalent inductance of a pair of a coupled inductor in various configuration are
(a) 7 H after series adding connection
(b) 1.8 H after series opposing connection
(c) 0.5 H after parallel connection with dotted terminal connected together.
The value of L₁ ,L₂ and M are

A.
3 H, 1.6 H, 1.2 H
B.
1.6 H, 3 H, 1.4 H
C.
3.7 H, 0.7 H, 1.3 H
D.
2 H, 3 H, 3 H

Solution:

QUESTION: 7

L_eq = ?

A.
0.2 H
B.
1 H
C.
0.4 H
D.
2 H

Solution:

QUESTION: 8

L_eq = ?

A.
1 H
B.
2 H
C.
3 H
D.
4 H

Solution:

QUESTION: 9

In the network of fig. P1.9.19 following terminal are connected together
(i) none (ii) A to B (iii) B to C (iv) A to C

The correct match for equivalent induction seen at terminal a - b is

A.
A
B.
B
C.
C
D.
D

Solution:

QUESTION: 10

L_eq =?

A.
1 H
B.
2 H
C.
3 H
D.
4 H

Solution:

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Test: Coupled Circuits - 2

10 Questions MCQ Test Network Theory (Electric Circuits) | Test: Coupled Circuits - 2

In the circuit shown in fig. P1.9.11 if current i₁ = 5 cos (500t - 20 ⁰) mA and i₂= 20 cos (500t - 20⁰) mA, the total energy stored in system at t = 0 is

L_eq = ?

L_eq = ?

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