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Induction and Energy Transfers Practice Questions

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Magnetism Learning Material
Tutorial IDTitleTutorialVideo
Tutorial		Revision
Notes		Revision
Questions
16.10Induction and Energy Transfers

Induction and Energy Transfers Revision Questions

1) What is the magnitude of the uniform magnetic field shown in the figure if the emf induced in the 10cm × 6cm rectangular coil when pulling it completely out of the field is 0.2 V. The entire process lasts for 0.4s.

Physics Tutorials: This image provides visual information for the physics tutorial Induction and Energy Transfers
  1. 0.83 T
  2. 3.3 T
  3. 13.3 T
  4. 33.3 T

Correct Answer: C

2) A 36 cm2 square-shaped coil (l = w) is inserted at constant speed (0.2 m/s) inside a 4 T uniform magnetic field. What is the resistance produced in the coil due to the magnetic field if the current induced in the coil is 0.8 A?

Physics Tutorials: This image provides visual information for the physics tutorial Induction and Energy Transfers
  1. 0.1 Ω
  2. 1.0 Ω
  3. 0.048 Ω
  4. 0.06 Ω

Correct Answer: D

3) A 50 cm × 40 cm rectangular loop is pulled at constant speed out a 2.0 T uniform magnetic field as shown in the figure.

Physics Tutorials: This image provides visual information for the physics tutorial Induction and Energy Transfers

It takes 5 seconds to the pulling force to shift the coil out of the magnetic field. If the average resistance provided by the coil during this process is 0.8 Ω, calculate the thermal energy transferred to the coil during this process.

  1. 0.04 J
  2. 0.032 J
  3. 0.064 J
  4. 0.5 J

Correct Answer: A

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