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A current of 12A flows in the element of an electric fire of resistance 25?.
Verify the power dissipated by the element. If the ?re is on for 5 hours every day, measure for a one week period
(a) The energy used, and
(b) Cost of using the ?re if electricity cost 13.5 p per unit.
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theory to write the process of finding of neutral point of a bar magnet
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