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Current Electricity

Current Electricity
One Newton meter is same as

One joule
Five joules
One watt
One joule second

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Current Electricity
Resistance of a tungsten lamp _____ as applied voltage increases.

None of the listed here
Decreases
Increases
Remains same

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Current Electricity
Which of the following statement is true both for a series and a parallel D.C. circuit?

Elements have individual currents
Voltages are additive
Power are additive
Currents are additive

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Current Electricity
Electric current passing through the circuit produces

Thermal effect
Magnetic effect
Chemical effect
Luminous effect

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

20 W
10 W
60 W
40 W

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Current Electricity
A light bulb draws 300 mA when the voltage across it is 240 V. The resistance of the light bulb is

400 Ω
800 Ω
1000 Ω
600 Ω

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