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“When electric current is passed through a resistance wire, it get heated up”.

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“When electric current is passed through a resistance wire, it get heated up”.

1. Name the law associated with this phenomenon.

2. What happens to the heat energy developed, if the current through the wire is doubled.

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1. Joules law of heating

2. Heat developed in the conductor H = I2 R If current is doubled, Heat developed becomes 4 times.

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