What is the potential difference across a resistor that dissipates 5.00 w of power and has a current of 5.0 a?

Electric potential difference (ΔV) is the difference in electric potential between the final and the initial location. It is also called voltage.

The power law equation is:

P = I * V (P - power, I - current and V - voltage)

Therefore: V = P / I

V = 5 W / 5 A

V = 1 V.

Answer: The potential difference across a resistor is 1 V.