Question

Pick out the correct one
H=1Rt
H=v²1/t
H=1¹Rt
H=v²t/1​

Answer 1

$\sf\huge\bold{Answer:}$

When current flowing through any conductor , heat is produced.

Heat energy produced in the conductor is

1. Directly proportional to square of electric current I²→H∝I²
2. Directly proportional to Resistance →H∝R
3. Directly proportional to time taken.→H∝t

This is Joules Equation of Electrical heating

• H=I²Rt...(1)

where,

H = heat produced

I = electric current

R = Resistance

t = time

We also know that

By Ohm's law

• I = V/R...(2)

So, from equation (1)&(2)

H=V²t/R²