A. insulators
B. inductors
C. semi-conductors
D. conductors
0
Out of the following which is not a poor conductor__________?
0
Out of the following which is an insulating material____________?
A. Cast iron
B. Copper
C. Carbon
D. Tungsten
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The property of a conductor due to which it passes current is called___________?
A. Copper
B. Gold
C. Silver
D. Paper
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Conductance is reciprocal of____________?
A. resistance
B. reluctance
C. conductance
D. inductance
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The resistance of a conductor varies inversely as___________?
A. resistance
B. inductance
C. reluctance
D. capacitance
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With rise in temperature the resistance of pure metals______________?
A. length
B. area of cross-section
C. temperature
D. resistivity
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With rise in temperature the resistance of semi-conductors_________________?
A. increases
B. decreases
C. first increases and then decreases
D. remains constant
0
The resistance of a copper wire 200 m long is 21 Q. If its thickness (diameter) is 0.44 mm, its specific resistance is around_______________?
A. decreases
B. increases
C. first increases and then decreases
D. remains constant
0
An instrument which detects electric current is known as_____________?
A. 1.2 x 10~8 Q-m
B. 1.4 x 10~8 Q-m
C. 1.6 x 10″”8 Q-m
D. 1.8 x 10″8 Q-m
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