What would happen if you hold the magnet still and move the solenoid?

If the magnet is held stationary near, or even inside, the coil, no current will flow through the coil. If the magnet is moved, the galvanometer needle will deflect, showing that current is flowing through the coil.

Does it matter if the coil or the magnet moves?

It does not matter, of course, whether you keep the coil stationary and move the magnet, or keep the magnet stationary and move the coil. What is important is their motion relative to each other, which is what determines the change in magnetic flux through the coil.

How do you increase the induced current in a solenoid?

The strength of the magnetic field around a solenoid can be increased by:

1. increasing the number of turns on the coil.
2. increasing the current.
3. placing an iron core inside the solenoid.

How does current being induced with the existence of magnetic field?

A current can be induced in a conducting loop if it is exposed to a changing magnetic field. In other words, if the applied magnetic field is increasing, the current in the wire will flow in such a way that the magnetic field that it generates around the wire will decrease the applied magnetic field.

What happens to the direction of the current when you move the magnet back and forth?

The Current Produced by a Magnet It measures the current that flows through the wire. The faster the magnet or coil moves, the greater the amount of current that is produced. If the magnet is moved back and forth repeatedly, the current keeps changing direction. In other words, alternating current (AC) is produced.

What happens to the magnetic field in the solenoid when the current increases?

Explanation: The magnetic field of a solenoid is directly proportional to the current in it. Hence as the current increases, the magnetic field also increases. Hence as the length increases, the magnetic field decreases.

Do you think you can induce an electric current in the wire loop by moving or rotating the loop?

Conversely, if we rotate a wire loop in a magnetic field, the field will induce an electric current in the wire. The direction of the current will reverse every half turn, producing an alternating current. This is the basis for the electric generator.

Why there is no induced current when a solenoid is connected?

Also when you move both the magnet and the solenoid in the same direction with the same speed, the relative speed between them is zero and hence this is similar to both the magnet and the coil at rest, and there will be no induced current. Thanks for contributing an answer to Physics Stack Exchange!

What happens when a magnet is placed in a solenoid?

As the magnet approaches the solenoid an electromotive force is generated that opposes the entry of the magnet. A south pole on the magnet develops a south pole at the beginning of the solenoid. At the other end after the magnet has dropped through the solenoid a south pole is generated opposing the north pole moving away.

How does a South Pole solenoid work?

A south pole on the magnet develops a south pole at the beginning of the solenoid. At the other end after the magnet has dropped through the solenoid a south pole is generated opposing the north pole moving away. But the current changes direction half way through.

What happens to induced current when a magnet moves closer?

The most important thing to remember is that the induced current opposes whatever change is taking place. In the first picture (left) the circuit loop has the south pole of a magnet moving closer. The magnitude of the field from the magnet is getting larger.