Magneticaly coupled circuits MCQ’s

This set of Electronic Devices & Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Magneticaly coupled circuits”.

Circuit for Q.1-Q.2

1. If i1 = 0 and i2 = 2 sin(4t), the voltage v1 is
a) -24 cos(4t) V
b) 24 cos(4t) V
c) 1.5 cos(4t) V
d) -1.5 cos(4t) V

2. If i1 = e^(-2t) and i2 = 0, the voltage v1 is
a) -6e^(-2t) V
b) 6e^(-2t) V
c) 1.5e^(-2t) V
d) -1.5e^(-2t) V

(Q.3-Q.4) For the circuit given below i1 = 4 sin(2t) and i2 = 0

3. v1 = ?
a) -16 cos 2t V
b) 16 cos 2t V
c) 4 cos 2t V
d) -4 cos 2t V

4. v2 = ?
a) 2 cos 2t V
b) -2 cos 2t V
c) 8 cos 2t V
d) -8 cos 2t V

Circuit for Q.5-Q.8

5. If i1 = 3 cos(4t) and and i2 = 0. Find v1.
a) -24 sin(4t) V
b) 24 sin(4t) V
c) 1.5 sin(4t) V
d) -1.5 sin(4t) V

6. If i1 = 4 cos(3t) and and i1 = 0. Find v2.
a) 12 cos(3t) V
b) -12 cos(3t) V
c) -24 cos(3t) V
d) 24 cos(3t) V

7. If i1 = 3 cos(4t) and and i2 = 0. Find v2.
a) -24 sin(4t) V
b) -36 sin(4t) V
c) sin(4t) V
d) -sin(4t) V

8. If i2 = 4 cos(3t) and and i1 = 0. Find v2.
a) -12 cos(3t) V
b) -24 cos(3t) V
c) -36 cos(3t) V
d) -48 cos(3t) V

9. Leq = ?

a) 2 H
b) 4 H
c) 6 H
d) 8 H

10. Leq = ?

a) 4 H
b) 6 H
c) 7 H
d) 0 H