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Current Electricity
Conductivity is the reciprocal of
Resistance
None of the listed here
Current density
Resistivity
Resistance
None of the listed here
Current density
Resistivity
Answer
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Related Question
Current Electricity
At 0 K, germanium behaves as
An insulator
A superconductor
A conductor
A ferromagnetic substance
An insulator
A superconductor
A conductor
A ferromagnetic substance
Answer
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Current Electricity
Sparking occurs when a load is switched off because the circuit has high
Capacitance
Inductance
Impedance
Resistance
Capacitance
Inductance
Impedance
Resistance
Answer
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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
11 Ω
10 Ω
12.1 Ω
9 Ω
11 Ω
10 Ω
12.1 Ω
9 Ω
Answer
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Current Electricity
International ohm is defined in terms of the resistance of
A column of mercury
A cube of carbon
The unit length of wire
A cube of copper
A column of mercury
A cube of carbon
The unit length of wire
A cube of copper
Answer
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Current Electricity
Two bulbs of 500 W and 200 W rated at 250 V will have resistance ratio as
25 : 4
4 : 25
2 : 5
5 : 2
25 : 4
4 : 25
2 : 5
5 : 2
Answer
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