The peak value of an alternating current in a 1500-W device is 6.4 A. What is the rms voltage across it

Question

The peak value of an alternating current in a 1500-W device is 6.4 A. What is the rms voltage across it

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Huyền Thanh 1 year 2021-07-31T10:43:07+00:00 1 Answers 43 views 0

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    2021-07-31T10:45:03+00:00

    Answer:

    6787.5 V

    Explanation:

    From the question,

    P = IV………………… Equation 1

    Where P = Power, I = rms current, V = rms voltage.

    make V the subject of the equation

    V = P/I…………….. Equation 2

    Given: P = 1500 W, I = 6.4/√2 = 4.525 A

    Substitute these values into equation 2

    V = 1500(4.525)

    V = 6787.5 V

    Hence the rms voltage = 6787.5 V

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