1000+ ECE Viva Questions and Answers Pdf - 2

Question: 6

Ohm’s law is applicable to

(A) semiconductors

(B) carbon resistor

(C) neither a nor b

(D) both a and b

Question: 7

Permeance is analogous to

(A) resistance

(B) conductance

(C) reluctance

(D) inductance

Question: 8

When the current through the coil of an electromagnet reverses, the

(A) direction of the magnetic field remains unchanged

(B) direction of the magnetic field reverses

(C) magnetic field collapses

(D) magnetic field expands

Question: 9

For a given voltage, four heating coils will produce maximum heat, when connected

(A) one pair in parallel with the other two in series

(B) with two parallel pairs in series

(C) all in series

(D) all in parallel

Question: 10

Thevenin’s theorem cannot be applied to

(A) active circuit

(B) passive circuit

(C) linear circuit

(D) nonlinear circuit