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Current Electricity

Current Electricity
Which of the following is the best conductor of electricity?

Copper
Gold
Silver
Zinc

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Current Electricity
If the efficiency of a machine is to be high, what should be low?

Losses
True component of power
kWh consumed
Input power

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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

Ri
None of them
Either Rl or Ri
Rl

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Current Electricity
An instrument which detects electric current is known as

Wattmeter
Voltmeter
Galvanometer
Rheostat

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Current Electricity
Electric pressure is also called

Voltage
Power
Resistance
Energy

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Current Electricity
Out of the following which is not a poor conductor?

Cast iron
Tungsten
Copper
Carbon

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MORE MCQ ON Current Electricity

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