Question

Write an expression for calculating electrical power in terms of current and resistance.

Answer 1

1. The rate at which electric energy is consumed, is known as electric power.
2. The SI unit of electric power is Watt or joule per second.
3. The measure of its opposition to the flow of electric current is resistance.
4. The SI unit of electric resistance is the$ohm\left(\Omega \right).$
5. Electric current is the rate of flow of electric charge.
6. The SI unit of electric current is ampere $\left(A\right)$
7. The relation between electrical power, resistance, and current in a circuit is given by $P=I^2\times R$
   Where $P-$power, $I-$current, $R-$resistance.

Therefore, the expression for calculating electrical power in terms of current and resistance is $P=I^2\times R$.