1000+ DC Circuits Objective Questions and Answers Pdf - 1

Question: 1

When cells are arranged in parallel

(A) the e.m.f. decreases

(B) the e.m.f. increases

(C) the current capacity increases

(D) the current capacity decreases

Question: 2

Identical wires of nichrome and copper are connected in series in a circuit. This results in

(A) greater heat in copper

(B) greater heat in nichrome

(C) greater current in copper

(D) greater current in nichrome

Question: 3

Kirchhoff’s current law at a junction deals with

(A) conservation of charge

(B) conservation of angular momentum

(C) conservation of momentum

(D) conservation of energy

Question: 4

Two equals resistances are connected in series across a certain supply. If the resistances are now connected in parallel, the power produced will become

(A) one half

(B) two times

(C) four times

(D) none of the above

Question: 5

The purpose of load in an electric circuit is to

(A) decrease the circuit current

(B) increase the circuit current

(C) utilise electrical energy

(D) none of the above