1000+ DC Circuits Questions and Answers Pdf - 1
Question: 1
Kirchhoff’s voltage law deals with
(A) conservation of angular momentum
(B) conservation of momentum
(C) conservation of charge
(D) conservation of energy
Ans: D
conservation of energy
Question: 2
Electrical appliances are connected in parallel because it
(A) makes the operation of appliances independent of each other
(B) results in reduced power loss
(C) draws less current
(D) is a simple circuit
Ans: A
makes the operation of appliances independent of each other
Question: 3
When the internal resistance of a cell is large compared to the external resistance, then high current is obtained by grouping the cells in
(A) series parallel
(B) series
(C) parallel
(D) all three can be used
Ans: C
parallel
Question: 4
When resistances are connected in parallel, the current divides itself in
(A) inverse ratio of potentials
(B) direct ratio of resistances
(C) inverse ratio of resistances
(D) none of the above
Ans: C
inverse ratio of resistances
Question: 5
Three equal resistors connected in series across a source of e.m.f. together dissipate 10 W. What would be the power dissipated if the same resistors are connected in parallel across the same source of e.m.f.?
(A) 27 W
(B) 30 W
(C) 90 W
(D) 180 W
Ans: C
90 W
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