ECE - Questions and solutions set-12

Electronics and communication Engineering Questions and solutions set-12
Question:-
Option (A)

Option (B)

Option (C)

Option (D)

Correct Option:
B
Question Solution:

For constant ideal voltage source v = vi and i = any value so at t = 0 v = 5 V, at t = 1 v = 0 at t = 2 V = - 5 V.

Question:-
Option (A)
2 Ω
Option (B)
5 Ω
Option (C)
4 Ω
Option (D)
3 Ω
Correct Option:
A
Question Solution:

The circuit can be re-arranged as

So to have I = 0

5 R = 10

orR =



Question:-
Option (A)

Option (B)

Option (C)

Option (D)

Correct Option:
B
Question Solution:

The circuit can be reduced to

Req = R + R || R =

Soτ=