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Current Electricity

Current Electricity
The SI unit of power is

Watt-hour
Henry
Coulomb
Watt

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Current Electricity
Constantan wire is used for making starndard resistance because it has

Low specific resistance
Negligibly small temperature co-efficient of resistance
High specific resistance
High melting point

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Current Electricity
The resistance of human body is about

10 ohm
1000 ohm
25 ohm
200 ohm

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

Zinc
Silver
Gold
Copper

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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

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

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Current Electricity
If an electric current is passed through a nerve, the man

Is excited
Becomes insensitive to pain
Begins to weep
Begins to laugh

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MORE MCQ ON Current Electricity

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