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When a strong magnet is passed rapidly through a coil of wire what is true?
The magnetic field lines (the lines of force) around the magnet sweep the windings in the coil. This induces a voltage in the windings (through induction), and the voltage will try to drive current if it can. There is a bit more to this, but the essential elements are that the magentic lines of force cause voltage in the coil because there is relative motion between the field and the coil.
What is the name of the method of separating steel nails and brass screws?
Try a magnet!
The fundamental concept behind the operation of a transformer is?
an electric current can produce a magnetic field. then,magnetic field within the core of wire will induced the voltage. so magnetic will produce from current at the galvanometer and magnet was far from galvanometer and it induces the voltage
Can a magnet delete everything on a computer by just putting it on the outside?
No. A magnet only interfers with magnetic fields ... lots of old IBMs used magnetic memory cards and that's where the stories started. It might erase a floppy disk, but an electro-magnet does the job much better than a perminant magnet.
If a magnet is held close to a coil of wire will it cause current to flow?
Yes, but only if the magnet or the wire are kept moving.
A magnet is plunged into and out of a coil of wire 2 times per second This induces 5 volts If the rate of motion changes so that the magnet is plunged in and out 6 times per second what will be the?
15 volts because : 2 times in a second=5volts then 6 times in a second=15 volts
A magnet is plunged into and out of a coil of wire 2 times per second This induces 5 volts?
=15 volts +10volts
If the rate of motion changes so that the magnet is plunged in and out 6 times per second what will be the new induced voltage?
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Why does magnet attract?
The magnet induces magnetism in the iron - small magnetic regions in the iron become aligned, due to the magnetic field.
When does a magnet induce an electric current in a wire coil?
A magnet induces an electric current in a wire coil when there is a relative motion between the magnet and the coil, which generates a changing magnetic field. This changing magnetic field induces an electromotive force, leading to the flow of an electric current in the wire coil.
Moving a magnet quickly in and out of a coil of wire produces what?
Moving a magnet quickly in and out of a coil of wire induces an electric current in the wire due to electromagnetic induction. The changing magnetic field created by the moving magnet induces a current flow in the wire loop according to Faraday's law of electromagnetic induction.
What causes the magnet to rotate in dynamo?
The rotation of a magnet in a dynamo induces a changing magnetic field, which in turn induces an electric current in the surrounding wire coils due to electromagnetic induction. This current produces electrical power that can be harnessed for various applications.
How does moving the magnet towards or away from the coil affect the direction of the current?
Moving the magnet towards the coil induces a current in one direction, while moving it away induces a current in the opposite direction. This is due to Faraday's law of electromagnetic induction, which states that a changing magnetic field induces an electromotive force (EMF) that leads to the current flow.
How can a magnet induce current in a wire?
When a magnet moves near a wire, it creates a changing magnetic field around the wire. This changing magnetic field induces an electric current to flow in the wire through electromagnetic induction. The current is only induced while there is a relative motion between the magnet and the wire, or if the magnetic field intensity changes.
What happens to the direction of the current when you move the magnet back and forth?
When you move the magnet back and forth near a coil of wire, it induces an alternating current in the wire. The direction of this induced current changes as the magnet moves due to Faraday's law of electromagnetic induction, which states that changing magnetic fields induce an electromotive force (emf) in a conductor.
When a magnet is moved through a coil of wire an electric current is generated in the coil because?
the moving magnet creates a changing magnetic field around the coil of wire. This changing magnetic field induces an electric current in the wire according to Faraday's law of electromagnetic induction.
How can you use a magnet to induce a current?
You can induce a current in a wire by moving the magnet in and out of the coil or by moving the coil near the magnet. The changing magnetic field created by the moving magnet induces a current in the wire according to Faraday's law of electromagnetic induction.
