A power supply maintains a potential difference of 52.3 V 52.3 V across a 1570 Ω 1570 Ω resistor. What is the current in the resistor?

0.033 A

Explanation:

Current: This can be defined as the rate of flow of electric charge in a circuit.

The S. I unit of current is Ampere (A)

From Ohm's law.

V = IR ... Equation 1

Where V = Potential difference, I = current, R = resistance.

Making I the subject of the equation,

I = V/R ... Equation 2

Given: V = 52.3 V, R = 1570 Ω

Substitute into equation 2

I = 52.3/1570

I = 0.033 A.

Hence the current in the resistor = 0.033 A