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Current Electricity

Current Electricity
With three resistances connected in parallel, if each dissipates 20 W the total power supplied by the voltage source equals

60 W
40 W
10 W
20 W

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Current Electricity
Electric current passing through the circuit produces

Thermal effect
Chemical effect
Luminous effect
Magnetic effect

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Current Electricity
At 0 K, germanium behaves as

A superconductor
A conductor
An insulator
A ferromagnetic substance

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Current Electricity
What voltage drop will be there across a 1 kW electric heater whose resistance when hot is 40 Ω?

50 V
200 V
100 V
150 V

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Current Electricity
Ohm's law is not applicable to

High voltage circuits
Vaccum tubes
Carbon resistors
Circuits with low current densities

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Current Electricity
Electric pressure is also called

Power
Resistance
Voltage
Energy

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MORE MCQ ON Current Electricity

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