How does the magnitude of induced current change in a closed coil in a more powerful magnetic field?
Answers
Answer:
Explanation:1). Increasing the number of turns of wire in the coil – By increasing the amount of individual conductors cutting through the magnetic field, the amount of induced emf produced will be the sum of all the individual loops of the coil, so if there are 20 turns in the coil there will be 20 times more induced emf than in one piece of wire.
2). Increasing the speed of the relative motion between the coil and the magnet – If the same coil of wire passed through the same magnetic field but its speed or velocity is increased, the wire will cut the lines of flux at a faster rate so more induced emf would be produced.
3). Increasing the strength of the magnetic field – If the same coil of wire is moved at the same speed through a stronger magnetic field, there will be more emf produced because there are more lines of force to cut.
Answer:
The magnitude of induced current is directly proportional to strength of magnetic field .
Explanation:
Induced current
- It is the current that is produced when conductor is moved between poles of magnet .
- When the conductor is moved between poles of magnet , magnetic lines are cut due to which magnetic flux is changed and as a result current is induced .
- The direction of induced current can be known by Fleming's right hand rule .
- More powerful is the magnet , more is the strength of magnetic field .