Question

DERIVE EQUATION OF HEATING EFFECT OF ELETRIC CURRENT​

Answer 1

Answer:

H=I²Rt

Explanation:

power(p) = electrical energy/time

P =E/T

BUT, Energy = work done

E=W

P=E/T

P= work done / time

P= W/T

but, power = V*Q/T[V=W/Q...V*Q=W]

P=V*I

P= Electrical energy/time

P=E/T

P*T =E

V*I*T=E

As electricity flows through a conductor heat is also produced.

Electrical energy= Heat energy

E=H

we know that H=V*I*T

By using ohm's law

V=I*R

By putting this value in above equation

H=V*I*T

H=I*R*I*T

H=I²*R*T joules.