Question

The electric power consumed by a device may be calculated by using either of the two expressions P=I2RorP=V2R. The first expression indicates that it is directly proportional to R whereas the second expression indicates inverse proportionality. How can the seemingly different dependence of P on R in these expressions be explained?​

Answer 1

See in Series combination as current is constant here

Here power is inversely proportional to no. of appliances connected as voltage goes on decreasing

But

In parallel connection the power increases as the no. of appliances increases

P=I²Rt (series). P=V²t/R (parallel)

Power directly proportional to R in parallel

Whereas Power inversely proportional to R in series

Mark it brainliest