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MMLU-Pro / 9700 / A flat coil consisting of 500 turns, each of area 50 cm^2, rotates about a…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

A flat coil consisting of 500 turns, each of area 50 cm^2, rotates about a diameter in a uniform field of intensity 0.14 Wb\textbulletm^\rule{1em}{1pt}2,the axis of rotation being perpendicular to the field and the angular velocity of rotation being 150 rad's^\rule{1em}{1pt}1. The coil has a resistance of 5 \Omega, and the in-ducedemfis connected via slip rings and brushes to an external resistance of 10 \Omega. Calculate the peak current flowing and the average power supplied to the 10-\Omega resistor.

category

physics

options

  1. Peak current is 5.0 A, average power is 80 W
  2. Peak current is 2.8 A, average power is 39.2 W
  3. Peak current is 5.5 A, average power is 100 W
  4. Peak current is 3.0 A, average power is 50 W
  5. Peak current is 6.0 A, average power is 90 W
  6. Peak current is 3.5 A, average power is 61.25 W
  7. Peak current is 4.0 A, average power is 40 W
  8. Peak current is 2.5 A, average power is 62.5 W
  9. Peak current is 3.2 A, average power is 51 W
  10. Peak current is 4.5 A, average power is 75 W

src

stemez-Physics

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