Question

How to derive heat in current electricity

Answer 1

Hence the heating effect produced by an electric current, I through a conductor of resistance, R for a time, t is given by H = I2Rt. This equation is called the Joule's equation of electrical heating. b)The resistance of the filament used in the bulb. A 2.5 kW immersion heater is used to heat water.

i hope this answer helps..

mark me as a brainliest..

Answer 2

Let's start with definition of Potential difference :

Potential difference is defined as the the work done to transport unit positive charge from one point to another.

So, Mathematically we can say :

$V = \dfrac{Work}{Charge}$

$Work = V \times Charge$

Let V be Potential Difference , t be time , R be resistance and I be current.

Considering the whole work done is equal to heat produced , we can say :

$Heat = V \times Charge$

$Heat = V \times (I \times t)$

$Heat =( I \times R) \times (I \times t)$

$Heat = {I}^{2}Rt$

This is how we can derive the formula for heat produced in a circuit