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Current Electricity

Current Electricity
Three resistance of 10 ohms, 15 ohms, and 30 ohm are connected in parallel. The total resistance of the combination is

15 ohms
5 ohms
10 ohms
55 ohms

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Current Electricity
One Newton meter is same as

Five joules
One joule
One joule second
One watt

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Current Electricity
The resistance of a conductor varies inversely as

Are of cross-section
Length
Resistivity
Temperature

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Current Electricity
In which of the following substances the resistance decreases with increase in temperature?

Carbon
Silver
Constantan
Copper

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Current Electricity
For which of the following 'ampere second' could be the unit?

Charge
Power
Reluctance
Energy

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Current Electricity
The resistance of conductor varies inversely as

Resistivity
Area of cross-section
Temperature
Length

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