Question

Watt is the SI unit of power, is also a unit by which electrical power can be represented.

• A. $Amper{e}^2\times Ohm$
• B. $Amper{e}^3\times Ohm$
• C. $Amper{e}^{}\times Oh{m}^2$
• D. $Amper{e}^{}\times Oh{m}^3$

Answer 1

The correct option is A $Amper{e}^2\times Ohm$

Electric power = VI
$={\text{I}}^2\times \text{R}=({\text{Ampere}}^2\times \text{Ohm})$, where Ampere and Ohm are the S.I units of current and resistance respectively.