Question

name the physical quantity expressed as the product of potential difference and electric current

Answer 1

Answer:

resistance.........

Answer 2

Product of potential difference and electric current gives POWER.

• Power refers to the rate of doing work with respect to time.

• In case of electric circuits, power refers to the rate of heat production in a circuit.

The general equation of power output in the circuit is :

$P = \dfrac{heat}{time}$

$\implies P = \dfrac{h}{t}$

$\implies P = \dfrac{ {i}^{2} \times r \times t }{t}$

$\implies P = {i}^{2} \times r$

$\implies P = {i}^{2} \times \dfrac{V}{i}$

$\implies P = V \times i$

So, power is given as product of potential difference and current.