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If a wire carries a current of 3 A and has a resistance of 2 ohms, what is the power dissipated in the wire?

Practice Questions

1 question
Q1
If a wire carries a current of 3 A and has a resistance of 2 ohms, what is the power dissipated in the wire?
  1. 6 W
  2. 9 W
  3. 12 W
  4. 15 W

Questions & Step-by-step Solutions

1 item
Q
Q: If a wire carries a current of 3 A and has a resistance of 2 ohms, what is the power dissipated in the wire?
Solution: Power is given by P = I^2 * R. Here, P = (3 A)^2 * 2 Ω = 9 * 2 = 18 W.
Steps: 0

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