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25 December, 17:40

The power in an electrical circuit is given by the equation P = RR, where / is

the current flowing through the circuit and Ris the resistance of the circuit.

What is the current in a circuit that has a resistance of 30 ohms and a power

of 2 watts?

A. 15 amps

B. 0.26 amps

C. 3.9 amps

D. 0.067 amps

+4
Answers (2)
  1. 25 December, 17:56
    0
    B

    Explanation:

    P = I² R

    If P is 2 watts and R is 30 ohms:

    2 = I² (30)

    I = √ (1/15)

    I ≈ 0.26 A
  2. 25 December, 21:02
    0
    B. 0.26 amps is your answer
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