Question

Derive Joules law of Heat


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Answer 1

Answer:

P  = VI  

                   H = P × t = Vlt

But             V = IR (ohm's law)

∴                H = I2Rt

Answer 2

★ $\bold\pink{\fbox{\sf{P = VI}}}$★

$\mapsto\bf{H =\: P \:× t =\: Vlt}$

But $\mapsto\bf{V \:= IR \:(ohm's \:law) }$

∴ $\mapsto\bf{H\: =\: I2\:Rt}$

★$\underline{\bf{About\: it \::-}}$★

Joule’s law is a description of the rate at which resistance in a circuit converts electric energy into heat energy.

the amount of heat per second that develops in a current-carrying conductor is proportional to the electrical resistance of the wire and the square of the current.

The heat that is generated because of the current flow in an electric wire is described in Joules.

★$\underline{\bf{Joule’s\: first\: law}}$★

The joule’s first law shows the relationship between heat produced by flowing electric current through a conductor.

★$\boxed{\bf{Q \:= \:I2 \:R T }}$★

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