# Question: Can You Produce A Current When The Magnet Goes Up And Down In The Loops?

## What happens when a magnet is passed through a wire loop?

If you move a bar magnet toward a loop of wire, it increases the flux through the loop, which induces a voltage around the loop, which causes an electric current to flow in the wire.

In other words, you have the technology to build a generator and generate electricity..

## What happens if you move a magnet near a coil of wire?

When a magnet is moved into a coil of wire, changing the magnetic field and magnetic flux through the coil, a voltage will be generated in the coil according to Faraday’s Law. … The polarity of the induced emf is such that it produces a current whose magnetic field opposes the change that produces it.

## What relationship can you make between the number of loops and the current produced?

The direction of the change in the magnetic field determines the direction of the current. We can increase the voltage by increasing the number of loops in the circuit. The induced voltage in a coil with two loops will be twice that with one loop, and with three loops it will be triple.

## Does Loop area affect the current flow?

Firing your bar magnet through a huge loop won’t create much change in flux, so it won’t induce much current. But a very small loop might enclose the field that passes inside the magnet, but not very much of the field that passes outside the magnet.

## What happens to the magnetic field when you increase the number of loops?

Higher the number of turns, higher the length and thus the amount of current carrying coil material in use is higher and thus higher the magnetic field due to increased amount of current flowing through the solenoid as a result of the increased number of turns.

## How do you induce current in a coil?

Electric current can be induced in a coil due to the relative motion between the coil and a magnetic field….AnswerInducing current on a coil by moving the coil in a magnetic field.Inducing current on a coil by by changing the magnetic field across it.More items…•

## What was Faraday’s experiment?

When Michael Faraday made his discovery of electromagnetic induction in 1831, he hypothesized that a changing magnetic field is necessary to induce a current in a nearby circuit. To test his hypothesis he made a coil by wrapping a paper cylinder with wire.

## Why does magnetic field depends on moving charges only?

Making Connections: Charges and Magnets When charges are stationary, their electric fields do not affect magnets. But, when charges move, they produce magnetic fields that exert forces on other magnets. When there is relative motion, a connection between electric and magnetic fields emerges—each affects the other.

## What are the effects of moving a closed wire loop?

What are the effects of moving a closed wire loop through a magnetic field? A voltage is induced in the wire. A current is induced in the wire. The polarity across the wire depends on the direction of motion.

## Can changing magnetic field induce current in a current loop?

If a coil of wire is placed in a changing magnetic field, a current will be induced in the wire. This current flows because something is producing an electric field that forces the charges around the wire. … This “something” is called an electromotive force, or emf, even though it is not a force.

## What happens to the voltmeter when the magnet is moving from right to left through the loop what is causing this to occur?

Figure 20.34 The bar magnet moves downward with respect to the wire loop, so that the number of magnetic field lines going through the loop decreases with time. This causes an emf to be induced in the loop, creating an electric current.