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Author Question: A flat coil of wire consisting of 20 turns, each with an area of 50 cm2, is positioned ... (Read 43 times)

brutforce

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A flat coil of wire consisting of 20 turns, each with an area of 50 cm2, is positioned perpendicularly to a uniform magnetic field that increases its magnitude at a constant rate from 2.0 T to 6.0 T in 2.0 s. If the coil has a total resistance of 0.40 W, what is the magnitude of the induced current?
 a. 0.70 A
  b. 0.60 A
  c. 0.50 A
  d. 0.80 A
  e. 0.20 A

Question 2

A coil is wrapped with 300 turns of wire on the perimeter of a circular frame (radius = 8.0 cm). Each turn has the same area, equal to that of the frame. A uniform magnetic field is turned on perpendicular to the plane of the coil. This field changes at a constant rate from 20 to 80 mT in a time of 20 ms. What is the magnitude of the induced emf in the coil at the instant the magnetic field has a magnitude of 50 mT?
 a. 24 V
  b. 18 V
  c. 15 V
  d. 10 V
  e. 30 V



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sultana.d

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Answer to Question 1

C

Answer to Question 2

B



brutforce

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Both answers were spot on, thank you once again



sultana.d

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