Multiple choice

Electric current in a conductor causes heat by:

  1. creating an open circuit

  2. decreasing the watts used

  3. increasing the resistance in the line

  4. decreasing the resistance in the line
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

According to Joule's Law, heat is generated when current flows through a conductor due to resistance. Higher resistance leads to more heat production.

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