Question 1002 of 790 · California General Electrician Exam

A heater operates on a fixed supply voltage. If its element resistance were doubled, the current would:

Exactly one answer is correct.

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Correct answer to question 1002

  • C: Drop to one half of its original value

Explanation

By Ohm's law I = E / R, current is inversely proportional to resistance when voltage is constant. Doubling R therefore cuts the current in half.

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