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Author Question: When a magnet is moved to and fro in a wire coil, voltage is induced. If the coil has twice as many ... (Read 45 times)

pragya sharda

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When a magnet is moved to and fro in a wire coil, voltage is induced. If the coil has twice as many loops, the voltage induced is
 
  A) half.
  B) the same.
  C) twice.
  D) four times as much.
  E) none of the above

Question 2

The metal detectors that people walk through at airports operate via
 
  A) Ohm's law.
  B) Faraday's law.
  C) Coulomb's law.
  D) Newton's laws.
  E) civil laws.



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AISCAMPING

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Answer to Question 1

Answer: C

Answer to Question 2

Answer: B





 

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