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28 April, 14:23

The power in an electrical circuit is given by the equation p = / 2 r, where / is the current flowing through the circuit. what is the current in a circuit that has resistance of 100 ohms and a power of 15 watts?

A. 0.15 amps

B. 0.39 amps

C. 6.7 amps

D. 2.6 amps

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Answers (2)
  1. 28 April, 15:43
    0
    in your as

    Step-by-step explanation:

    1 - 0
  2. 28 April, 16:39
    0
    Actually, the equation is

    power (in Watts) = I² * r

    I - current in amps and r - resistance in watts

    Solving this for the current (I)

    I = square root (power / resistance)

    I = square root (15 / 100)

    I = square root (.15)

    I = 0.3872983346 amps

    answer is B
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