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Current Electricity

Current Electricity
Which of the following quantities remain the same in all parts of a series circuit?

Resistance
Voltage
Power
Current

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Current Electricity
Three 60 W bulbs are in parallel across the 60 V power line. If one bulb burns open

All three bulbs will light
Rest of the two bulbs will not light
There will be heavy current in the main line
The other two bulbs will light

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Current Electricity
A thermistor has

Zero temperature coefficient
Negative temperature coefficient
Variable temperature coefficient
Positive temperature coefficient

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

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

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Current Electricity
At 0 K, germanium behaves as

A conductor
A superconductor
An insulator
A ferromagnetic substance

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Current Electricity
Specific resistance of a substance is measured in

Ω-m
None of the listed here
Ω/m
m/Ω

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