Question 13005 of 731 · Texas Journeyman Electrician Exam
A current of 10 amperes flows through a conductor path with a total resistance of 0.5 ohm. How much power is lost as heat in the conductors?
Exactly one answer is correct.
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Correct answer to question 13005
- A: 50 W
Explanation
Conductor loss is P = I squared x R = 10 x 10 x 0.5 = 50 W. Multiplying I by R gives 5 (that is the voltage drop in volts, not watts).
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