Question

A 1-kohm resistor has a 15v across it. calculate power dissipation

Answer 1

Given data

*The given resistor is R = 1 Kohm = 1 ×10^3 ohms

*The given voltage is V = 15 V

The formula for the power dissipation is given as

`P=(V^2)/(R)`

Substitute the known values in the above expression as

`\begin{gathered} P=((15)^2)/((1*10^3)) \\ =0.225\text{ W} \end{gathered}`