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Current Electricity

Current Electricity
The weight of an aluminium conductor as compared to a copper conductor of identical cross-section, for the same electrical resistance, is

0.5
0.6
1.5
1

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Current Electricity
At 0 K, germanium behaves as

A conductor
A ferromagnetic substance
A superconductor
An insulator

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Current Electricity
The SI unit of power is

Coulomb
Henry
Watt
Watt-hour

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Current Electricity
Electric current is a

Number only
Vector quantity
Sometimes scalar and sometimes vector
Scalar quantity

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Current Electricity
If the efficiency of a machine is to be high, what should be low?

Losses
kWh consumed
True component of power
Input power

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Current Electricity
It becomes more difficult to remove

First electron from the orbit
Third electron from the orbit
Second electron from the orbit
Any electron from the orbit

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MORE MCQ ON Current Electricity

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