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.Management Sciences
Category: Basic Electrical Mcqs
When a voltage of one volt is applied, a circuit allows one micro ampere current to flow through it. The conductance of the circuit is___________?
0
A. 1 n-mho
B. 106 mho
C. 1 milli-mho
D. none of the above
A substance whose molecules consist of dissimilar atoms is called____________?
A. semi-conductor
B. super-conducto
C. compound
D. insulator
If a parallel circuit is opened in the main line, the current_______________?
A. increases in the branch of the lowest resistance
B. increases in each branch
C. is zero in all branches
D. is zero in the highest resistive branch
Two resistors are said to be connected in series when___________?
A. same current passes in turn through both
B. both carry the same value of current
C. total current equals the sum of branch currents
D. sum of IR drops equals the applied e.m.f.
Copper wire of certain length and resistance is drawn out to three times its length without change in volume, the new resistance of wire becomes__________?
A. 1/9 times
B. 3 times
C. 9 times
D. unchanged
One newton meter is same as_____________?
A. one watt
B. one joule
C. five joules
D. one joule second
The filament of an electric bulb is made of______________?
A. carbon
B. aluminium
C. tungsten
D. nickel
The property of a conductor due to which it passes current is called___________?
A. resistance
B. reluctance
C. conductance
D. inductance
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