Question

Why unit of power is called derived unit?

Answer 1

Answer:

it was given the name Newton (N).

from this, the derived unit of energy (or work) is defined ,as the work produced when the unit of force causes a displacement equal to the unit of length of its point of application along its direction .It was given the name Joule (J).

Answer 2

The unit of power is called the derived unit.

• The watt (represented by the sign W) is the SI unit of power.
• One watt is also equal to one joule per second.

• Because the watt is not one of the seven basic SI units, it is the unit of power in the SI system.
• All other SI units are derived units since they can be stated in terms of those basic units from their core definition.