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Author Question: The self-inductance of a solenoid increases under which of the following conditions? a. Only the ... (Read 171 times)

DelorasTo

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on: Jul 28, 2018
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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Reply #1 on: Jul 28, 2018
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

ryhom

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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