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Current Electricity

Current Electricity
An electric filament bulb can be worked from

All of the listed here
AC supply only
Battery supply only
DC supply only

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Current Electricity
The resistance of two wires is 25 Ω when connected in series and 6 Ω when joined in parallel. The resistance of each wire is

10 Ω, 15 Ω
10 Ω, 20 Ω
20 Ω, 30 Ω
5 Ω, 10 Ω

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

Gold
Zinc
Silver
Copper

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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

9 Ω
12.1 Ω
10 Ω
11 Ω

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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

3.2 kWh
5 kWh
6 kWh
2 kWh

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Current Electricity
Conductance is reciprocal of

Inductance
Reluctance
Resistance
Capacitance

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MORE MCQ ON Current Electricity

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