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Author Question: A solenoid with 500 turns, 0.10 m long, carrying a current of 2.0 A and with a radius of 10-2 m will ... (Read 454 times)

scienceeasy

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on: Jul 28, 2018
A solenoid with 500 turns, 0.10 m long, carrying a current of 2.0 A and with a radius of 10-2 m will have what strength magnetic field at its center? (magnetic permeability in empty space 0 = 4p  10-7 Tm/A)
 a. 31  10-4 T
  c. 2.5  10-2 T
  b. 1.3  10-2 T
  d. 62  10-4 T

Question 2

If it takes 8.0 N to stretch a spring 6.0 cm, and if the spring is then cut in half, what force does it take to stretch one of the halves 3.0 cm?
 a. 2.0 N
  c. 8.0 N
  b. 4.0 N
  d. 16 N


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ally

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

B

Answer to Question 2

C


scienceeasy

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Reply #2 on: Jul 28, 2018
TY


ally

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Reply #3 on: Jul 28, 2018
You're welcome


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