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Current Electricity

Current Electricity
If a wire conductor of 0.2 ohm resistance is doubled in length, its resistance becomes

0.8 ohm
0.6 ohm
0.4 ohm
1.0 ohm

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Current Electricity
Which of the following material has nearly zero temperature co-efficient of resistance?

Carbon
Porcelain
Copper
Manganin

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Current Electricity
A 3 Q resistor having 2 A current will dissipate the power of

6 watts
2 watts
4 watts
8 watts

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Current Electricity
It becomes more difficult to remove

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

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Current Electricity
A current of 16 amperes divides between two branches in parallel of resistances 8 ohms and 12 ohms respectively. The current in each branch is

4.6 A, 6.9 A
6.4 A, 6.9 A
6.4 A, 9.6 A
4.6 A, 9.6 A

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Current Electricity
A resistance having rating 10 ohms , 10 W is likely to be a

Variable resistor
Carbon resistor
Wire wound resistor
Metallic resistor

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MORE MCQ ON Current Electricity

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