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Current Electricity

Current Electricity
Conductivity is the reciprocal of

Resistivity
Resistance
Current density
None of the listed here

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Current Electricity
An instrument which detects electric current is known as

Voltmeter
Wattmeter
Rheostat
Galvanometer

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Current Electricity
In a circuit a 33 Q resistor carries a current of 2 A. The voltage across the resistor is

132 V
80 V
66 V
33 V

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Current Electricity
Two resistances Rl and Ri are connected in series across the voltage source where Rl > Ri. The largest drop will be across

None of them
Either Rl or Ri
Ri
Rl

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Current Electricity
A copper wire is stretched so that its length is increased by 0.1 % . The change in its resistance is

0.2%
0.3%
0.4%
None of the listed here

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Current Electricity
In which of the following substances the resistance decreases with increase in temperature?

Carbon
Constantan
Silver
Copper

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MORE MCQ ON Current Electricity

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