Electromagnetic Induction questions
610 published questions with worked solutions.
- Whenever the magnetic flux linked with a coil changes, then an induced e.m.f is produced in the circuit. This e.m.f. lasts
- The induced emf can be produced by changing
- The magnitude of induced e.m.f in a conductor depends upon
- Faraday's laws are consequence of the conservation of
- When a coil is rotated in a magnetic field with steady speed, then
- When a magnet is inserted into a coil the emf induced does not depend upon
- If a conductor is rotating about its one end in a uniform magnetic field then an emf induced in it is
- The direction of induced e.m.f in a conductor can be found by
- Magnetic flux through a coil depends upon
- If any surface is parallel to magnetic lines of force, then magnetic flux linked with it is
- Negative sign appearing in Faraday's law of electromagnetic induction indicates that
- When a magnet is moved with its south pole towards the coil, then the nearer face of the coil behaves as a
- When a magnet is moved with its N-pole away from the coil, then the nearer face of the coil behaves as a
- A copper rod moves parallel to the horizontal direction. The emf induced will be maximum at the
- Lenz's law provides a relation between
- If the magnetic field is doubled through a coil of number of turns 'n' then the induced e.m.f will be
- The magnetic flux (in webers) in a closed circuit of resistance 10 , varies with time t according to the equation =6t^2-5t+1. The...
- A magnetic field of 2 10^ -2 T acts at right angle to a coil of area 100 cm^2 with 50 turns. The average emf induced in the coil...
- If a conductor is moving in the north direction and magnetic field is applied vertically upwards, the change in flux is 2 10^ -4...
- A car moves up a plane road. The induced e.m.f in the axle connecting the two wheels is maximum when it
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