what is joules law .explain
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Answer:
a law stating that the heat produced by an electric current i flowing through a resistance R for a time t is proportional to i 2 Rt.
Joule's law
A law stating that the heat produced by an electric current i flowing through a resistance R for a time t is proportional to i 2 Rt.
Joule's first law
shows the relation between heat generated by an electric current flowing through a conductor. It is named after James Prescott Joule and shown as:
Where Q is the amount of heat, I is the electric current flowing through a conductor, R is the amount of electric resistance present in the conductor, and t is the amount of time that this happens for.
Joule's second law
says that the internal energy of an ideal gas does not change if volume and pressure change, but does change if temperature changes.
Joule's law can be stated as :The quantity of Heat (H) generated in a conductor of Resistance (R), when a current is directly proportional to:
1)The square of the current
2)The resistance of the conductor
3)The time for which the current flows.
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