Joule's laws

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Joule's laws are two laws about heat produced by an electric current and the energy dependence of a gas to pressure, volume and temperature.

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:

Q = I^2 \cdot R  \cdot t

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 a gas does not change if volume and pressure change, but does change if temperature changes.