Basic concept of Energy, power & Heating effect

Jul 25, 2022, 16:45 IST

Energy, power & Heating effect

When a current I flows for time t from a source of emf E, then the amount of charge that flows in time t is

Q = I t.

Electrical energy delivered W = Q. V = V I t

Thus, Power given to the circuit, = W/t =VI or V2/R or I2R In the circuit

E. I = I2R + I2r,

where E I is the rate at which chemical energy is converted to electrical energy