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Current Electricity

Current Electricity
An open resistor, when checked with an ohmmeter reads

Zero
Low but not zero
High but within tolerance
Infinite

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Current Electricity
A copper wire has a resistance of 10 Ω. It is stretched by one-tenth of its original length. Then its resistance will be

10 Ω
12.1 Ω
9 Ω
11 Ω

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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
An electrical lamp coonsumes 100 W of power. If the supply voltage is 220 V the energy consumed in 30 minutes is

0.005 kWh
5 kWh
0.05 kWh
5 kWh

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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

1000 Ω
800 Ω
600 Ω
400 Ω

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Current Electricity
When one lag of parallel circuit is opened out the total current will

None of the listed here
Become zero
Decreases
Increases

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MORE MCQ ON Current Electricity

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