Question

the unit of power in SI is_________​

Answer 1

Answer:

joule

Explanation:

joule is the SI unit of powe

Answer 2

Answer:

The SI unit of power is Watt (W).

Explanation:

Power is defined as the work done in unit time. It explains the capacity of a machine to do work in a particular interval of time. If w is the work done in joules in a time interval of t seconds, then the power, P can be calculated using the equation:

                  P = w/t

From this, the unit of power is obtained as joules/sec (J/s). But the SI unit of power is Watt (W). So we can write as:

1W = 1J/s

∴ 1W is defined as 1J of work done per second.