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Author Question: A coil is placed in a changing magnetic field and an emf is induced. What happens to the induced emf ... (Read 323 times)

gonzo233

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on: Jul 28, 2018
A coil is placed in a changing magnetic field and an emf is induced. What happens to the induced emf if the rate of change of magnetic field doubles?
 a. The emf quadruples.
  c. There is no change.
  b. The emf increases by a factor of 16.
  d. The emf doubles.

Question 2

A car with bad shocks bounces up and down with a period of 1.50 s after hitting a bump. The car has a mass of 1250 kg and is supported by four springs of force constant k. What is k for each spring?
 a. 6580 N/m
  c. 4440 N/m
  b. 5480 N/m
  d. 3630 N/m


fdliggud

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Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

B


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