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A rectangular coil of copper wires is rotated in a magnetic field. The direction of the induced current changes once in each :
  • a)
    One revolution
  • b)
    One-fourth revolution
  • c)
    Half revolution
  • d)
    Two revolutions.
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
A rectangular coil of copper wires is rotated in a magnetic field. The...
Among given options half revolution is the right answer.
The current induced by the magnetic field in the rectangular coil made up of copper wire is being turned in order to rotate in the magnetic field, at every turn, the direction of induced current changes and being a vector quantity, induced current changes every half revolution.
 
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A rectangular coil of copper wires is rotated in a magnetic field. The direction of the induced current changes once in each :a)One revolutionb)One-fourth revolutionc)Half revolutiond)Two revolutions.Correct answer is option 'C'. Can you explain this answer?
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