In a potentiometer, the length and resistance of the wire are 10 metre and 20 Ω respectively. The wire is connected in series with a resistance of 5 Ω and a battery of emf 5 volt and negligible internal resistance. The potential gradient along the wire in volt per metre is

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In a potentiometer, the length and resistance of the wire are 10 metre and 20 Ω respectively. The wire is connected in series with a resistance of 5 Ω and a battery of emf 5 volt and negligible internal resistance. The potential gradient along the wire in volt per metre is






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