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Current Electricity

Current Electricity
If a wire conductor of 0.2 ohm resistance is doubled in length, its resistance becomes

0.8 ohm
1.0 ohm
0.4 ohm
0.6 ohm

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Current Electricity
The insulation on a current carrying conductor is provided

To prevent shock
None of above factors
To prevent leakage of current
Both of the listed here

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Current Electricity
Ampere-hour is the unit of

Quantity of electricity
Strength of current
Power
Energy

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Current Electricity
The electrical energy required to heat a bucket of water to a certain temperature is 4 kWh. If the heat losses are 20 percent, the energy input is

6 kWh
5 kWh
2 kWh
3.2 kWh

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Current Electricity
At 0 K, germanium behaves as

An insulator
A ferromagnetic substance
A superconductor
A conductor

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Current Electricity
For testing appliances, the wattage of test lamp should be

Low
High
Any value
Very low

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MORE MCQ ON Current Electricity

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