A metallic conductor at 10^(@)C connecte...

A metallic conductor at `10^(@)C` connected in the left gap of meter bridge gives balancing length 40 cm. When the conductor is at `60^(@)C`, the balancing point shifts by --- cm, (temperature coefficient of resistance of the material of the wire is `((1)/(220))/(.^(@)C))`

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A metallic conductor at `10^(@)C` connected in the left gap of meter bridge gives balancing length 40 cm. When the conductor is at `60^(@)C`, the balancing point shifts by --- cm, (temperature coefficient of resistance of the material of the wire is `((1)/(220))/(.^(@)C))`

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