Question

How can you define the term ‘power’? State its SI unit.

Answer 1

Power:

1. Power is defined as the rate of doing work or the rate at which energy is transferred or converted.
2. If work $W$ is done in time $t$ ,then $Power,P=\frac{Work\left(W\right)}{Time\left(t\right)}$
3. The SI unit of power is $watt\left(W\right)$.
4. $1W=1J{s}^{-1}$.