A 10 m long wire of resistance 20Omega is connected in series with a battery of emf 3V and a resistance of 10Omega. The potential gradient along the wire in volt per metre is

A 10 m long wire of resistance 20Omega is connected in series with a b

1.	A 10 m long wire of resistance 20Omega is connected in series with a battery of emf 3V and a resistance of 10Omega. The potential gradient along the wire in volt per metre is
Answer» 0.02 0.1 0.2 1.2 Solution :Potential difference across the wire `=(20)/(30)xx3=2V` Potential gradient `=(V)/(l)=(2)/(10)=0.2V//m`

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A 10 m long wire of resistance 20Omega is connected in series with a battery of emf 3V and a resistance of 10Omega. The potential gradient along the wire in volt per metre is

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