Current Electricity
E. M. F. In a circuit

None of the listed here
Maintains potential difference
Decrease circuit resistance
Increases circuit resistance

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Current Electricity
In an electric kettle water boils in 10 m minutes. It is required to boil the boiler in 15 minutes, using same supply mains

None of these
Length of heating element should be increased
Length of heating element has no effect on heating if water
Length of heating element should be decreased

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