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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
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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

User Ajknzhol
by
4.7k points

2 Answers

3 votes

Answer:

B. 0.26 amps is your answer

User Beetee
by
4.9k points
1 vote

Answer:

B

Step-by-step explanation:

P = I² R

If P is 2 watts and R is 30 ohms:

2 = I² (30)

I = √(1/15)

I ≈ 0.26 A

User Heraldmonkey
by
4.7k points
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