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Author Question: Superconductors can carry very large currents with no resistance. If a superconducting wire is ... (Read 51 times)

pepyto

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on: Jul 28, 2018
Superconductors can carry very large currents with no resistance. If a superconducting wire is formed into a solenoid of length 50.0 cm with 250 turns, what is the magnetic field inside the solenoid when the current is 104 A? (0 = 4p  10-7 Tm/A)
 a. 12.6 T
  c. 1.25 T
  b. 2.50 T
  d. 6.28 T

Question 2

By what factor must one change the weight suspended vertically from a spring coil in order to double its period of simple harmonic motion?
 a. 4
  c. 1/2
  b. 2
  d. 1/4


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vseab

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

D

Answer to Question 2

A


pepyto

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Reply 2 on: Jul 28, 2018
Gracias!

ttt030911

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Reply 3 on: Yesterday
Wow, this really help

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