Question

What is meant by the heating effect of current. Give two application ot the heating effect of current

Answer 1

answer:

when current flows through a conductor, heat energy is generated in the conductor.

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Answer 2

Answer:

Heating effect of Current:-

Heating effect of Current is the total amount of heat produced in a wire on passing a current through it.

Heating effect of current depends on 3 factors:-

1. The resistance of wire: The amount of heat produced by wire is directly proportional to the resistance R of wire, let H be the amount of heat and R be the resistance.
2. The amount of current passing through the wire: The amount of heat produced in a wire is directly proportional to the square of current I passing through the wire.
3. The total time took for which current is passed in the wire:The amount of heat H produced in a wire is directly proportional to the time t for which current is passing.

H proportion to t

$when \: i \: is \: an \: ampere \: r \: is \: ohm \: and \: t \: is \: second \:$

The relation is known as Joule's law of heating.

The Appliences are:-

1. Geysers
2. Room heater

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