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Current Electricity

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

Copper
Gold
Zinc
Silver

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Current Electricity
Nichrome wire is an alloy of

Chromium and vanadium
Lead and zinc
Nickel and chromium
Copper and silver

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Current Electricity
The resistance of a few meters of wire conductor in closed electrical circuit is

Practically zero
Very high
High
Low

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Current Electricity
Two resistances Rl and Ri are connected in series across the voltage source where Rl > Ri. The largest drop will be across

Either Rl or Ri
Ri
Rl
None of them

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Current Electricity
The resistance of a copper wire 200 m long is 21 ω. If its thickness (diameter) is 0.44 mm, its specific resistance is around

1.6 x 10-8 ω-m
1.8 x 10-8 ω-m
1.4 x 10-8 ω-m
1.2 x 10-8 ω-m

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Current Electricity
Electric pressure is also called

Voltage
Power
Resistance
Energy

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MORE MCQ ON Current Electricity

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