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29 April, 22:22

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?

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  1. 30 April, 01:27
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    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
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