Chapter 23: Magnetic Flux and Faraday's Law of Induction
Puzzles




1.  

"Play Bulb!"

The figure shows three identical lightbulbs attached to an ideal battery and an inductor. The switch is closed for a long time, then opened. Which of the following statements correctly describes what happens just after the switch is opened?
  1. Bulb B stays the same, and bulbs A and C go out.
  2. Bulb B stays the same and bulbs A and C get brighter
  3. Bulb B goes out, and blubs A and C get brighter
  4. Bulb B gets brighter and bulbs A and C stay the same
  5. Bulb B gets brighter and bulbs A and C go out
  6. All three bulbs get brighter
  7. All Three bulbs go out
  8. None of the above (state what DOES happen)

Please answer this in words, not equations, briefly explaining how you obtained your answer.


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