Question

Write the relation between SI and MKS units of electric power.

Hint:

Power in the SI and MKS systems is numerically the same, with both units related to energy conversion per second.

Answer 1

Step 1: In the SI system, electric power is measured in watts (W), where: \[ 1 \text{ watt} = 1 \text{ joule/second} \] Step 2: In the MKS system, power is also expressed in terms of mechanical energy per unit time, which leads to the same value. \[ \therefore \text{The relation is } 1 \text{ watt} = 1 \text{ joule per second.} \] \[ \boxed{1 \text{ watt} = 1 \text{ joule/second}} \]