Question

state joules law of heating. state any two factors affecting the amount of heat​

Answer 1

Joule’s law of heating states that,

when a current ‘i ' passes through a conductor of resistance ‘r’ for time ‘t’ then the heat developed in the conductor is equal to the product of the square of the current, the resistance and time.

Heat absorbed by the body is directly proportional to the mass of the body, i.e., more the mass, more will be the heat absorbed by the body.

Q∝M

(ii) Heat absorbed by the body is directly proportional to the rise in temperature, i.e., more heat will be absorbed when the body is heated at greater temperature.

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