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26 July, 08:19

The compressor on an air conditioner draws 121 A when it starts up. The start-up time is about 0.505 s. How much charge passes a cross-sectional area of the circuit in this time?

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  1. 26 July, 09:13
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    61.105 C

    Explanation:

    Charge: This can be defined as the product of current flowing through a circuit and time. The S. I unit of charge is coulomb's (C)

    I = Q/t ... Equation 1

    Where I = current, Q = Charge, t = time.

    Note: The current through a cross sectional area of the compressor is the amount of charge passing through the area per unit time.

    Q = It ... Equation 2

    Given: I = 121 A, t = 0.505 A.

    Substitute into equation 2

    Q = 121 (0.505)

    Q = 61.105 C.

    Hence the charge passing through the cross sectional area of the circuit = 61.105 C
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