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Current Electricity

Current Electricity
An instrument which detects electric current is known as

Rheostat
Voltmeter
Galvanometer
Wattmeter

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

Current
Power
Resistance
Voltage

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Current Electricity
The rating of a fuse wire is always expressed in

kWh
Ampere-hours
Ampere-volts
Amperes

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Current Electricity
A copper wire is stretched so that its length is increased by 0.1 % . The change in its resistance is

0.4%
None of the listed here
0.2%
0.3%

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Current Electricity
A thermistor has

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

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Current Electricity
In a circuit a 33 Q resistor carries a current of 2 A. The voltage across the resistor is

33 V
132 V
66 V
80 V

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