32)
Rationalised 2023-24
Current
Electricity
93
Using Ohm’s law V = IR, we get
P = I 2 R = V 2/R
(3 33)
as the power loss (“ohmic loss”) in a conductor of resistance R carrying a
current I It is this power which heats up, for example, the coil of an
electric bulb to incandescence, radiating out heat and light Where does the power come from