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The emf of the driver cell of a potentiometer is 2V & its internal resistance is negligible . The length of the potentiometer wire is 100cm & resistance is 5 ohm.How much resistance is to be connected in series with the potentiometer wire to have a potential gradient of 0.05V/cm?
Dear Ranjita,
1995 ohm.
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plzz explain..I din''t ask ans. ..tht I know..I need explanation.
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