Question

State joule's law of heating and express it mathematically

Answer 1

Joule’s Law



We know that the heating impact of electric current when it travels in a circuit is because of collision among electrons of wire. Specifically, what is the amount of heat generated during flow of current through a wire and what are the parameters and conditions it is based upon. To answer all these questions, Joule gave a formula that describes this phenomenon precisely, and called as Joule’s Law.

Joule’s Law of Heating

The heat that is generated because of the current flow in an electric wire is described in Joules. The mathematical expression of Joule’s law is as explained below.

Joule’s first law

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

Q = I2 R T

Where,

Q indicates amount of heat,

I shows electric current

R is the amount of electric resistance in conductor

T denotes time

Answer 2

Hii friend,

Joyless law of hearing is about on hearing.

It is expressed as

H= I²Rt (or) V²/R×t

where (I=V/R).

In this, H= heat of the substance
I= current through the substance
R= resistance
T= temperature.

hope this helps you a little!!!