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Author Question: An electric field of 4.0 mV/m is induced at a point 2.0 cm from the axis of a long solenoid (radius ... (Read 35 times)

mydiamond

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on: Jul 28, 2018
An electric field of 4.0 mV/m is induced at a point 2.0 cm from the axis of a long solenoid (radius = 3.0 cm, 800 turns/m). At what rate is the current in the solenoid changing at this instant?
 a. 0.50 A/s
  b. 0.40 A/s
  c. 0.60 A/s
  d. 0.70 A/s
  e. 0.27 A/s

Question 2

A long solenoid has a radius of 4.0 cm and has 800 turns/m. If the current in the solenoid is increasing at the rate of 3.0 A/s, what is the magnitude of the induced electric field at a point 2.2 cm from the axis of the solenoid?
 a. 3.3  10-5 V/m
  b. 3.6  10-5 V/m
  c. 3.9  10-5 V/m
  d. 4.2  10-5 V/m
  e. 6.0  10-5 V/m


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dudman123

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

B

Answer to Question 2

A


mydiamond

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Reply 2 on: Jul 28, 2018
Excellent

apple

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

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