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Author Question: The self-inductance of a solenoid increases under which of the following conditions? a. Only the ... (Read 173 times)

DelorasTo

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The self-inductance of a solenoid increases under which of the following conditions?
 a. Only the cross sectional area is decreased. b. Only the number of coils per unit length is decreased. c. Only the number of coils is increased. d. Only the solenoid length is increased.

Question 2

A child sits on a swing supported by ropes of length 4.0 m. With what frequency will she need to apply the driving force to maintain swinging?
 a. 0.29 Hz
  c. 0.25 Hz
  b. 0.48 Hz
  d. 0.38 Hz



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cloudre37

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Answer to Question 1

C

Answer to Question 2

C




DelorasTo

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Reply 2 on: Jul 28, 2018
Wow, this really help


pratush dev

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

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