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A moving magnet will cause an electric field - a voltage. This can cause currents in nearby conductors.
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∙ 13y ago
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How is a electromagnet diffrent then a permanent magnet?
By definition an electromagnet is only working when it has a supply of electricity, a Permanent Magnet is always a magnet
Why is a magnet useful in generating electricity?
As Faraday discovered, turning a magnet in a coil of wire generates electricity. This is how even today electricity is created, but we use water to turn the magnets in hydroelectricity and so on. It is useful because it is very efficient and it has a mechanical advantage: the force needed to turn the magnet is lss than the force generated by the magnet turning. So basically, to sum it up, the only way to generate electricity is wih a magnet and a solenoid (coil)
Why is an electro magnet a temporary magnet?
It is only magnetized when electricity is run through it. Once you stop the electron flow it reverts back to its original state.
What are the similarities and differences between a solenoid and a bar magnet?
DIFFERENCE: a bar magnet is a permanent magnet where as solenoid is a electromagnet so it acts as a magnet only when electricity is passed through it. SIMILARITIES: they both act as magnets and both have a similar magnetic field.
Why a piece of iron doesn't behave as a magnet?
It does ONLY if the atoms are lined up properly (and you line them up using a magnetic field).
How is a electromagnet diffrent then a permanent magnet?
By definition an electromagnet is only working when it has a supply of electricity, a Permanent Magnet is always a magnet
When a magnet that has a magnetic field only when there is electricity is called?
An Electromagnet
Can you magnetize a magnet in order to change it as a permanent magnet by the use of electricity?
No it will only be possible for it to be a temporary one
Why is a magnet useful in generating electricity?
As Faraday discovered, turning a magnet in a coil of wire generates electricity. This is how even today electricity is created, but we use water to turn the magnets in hydroelectricity and so on. It is useful because it is very efficient and it has a mechanical advantage: the force needed to turn the magnet is lss than the force generated by the magnet turning. So basically, to sum it up, the only way to generate electricity is wih a magnet and a solenoid (coil)
Why is an electro magnet a temporary magnet?
It is only magnetized when electricity is run through it. Once you stop the electron flow it reverts back to its original state.
How are the uses of an electromagnet different from those of a permanent bar magnet?
A bar magnet is made from magnet materials and has a magnetic field at all times. An electromagnetic is not naturally magnet and only has a magnetic field when electricity is passed through it.
Can you magnetize a metal by putting the metal on top of a magnet?
Some metals are naturally paramagnetic, meaing that you can induce a magnet field on it but only with a very strong magnet. To actually magnetize the metal itself without a magnet, you would have to make an induced magnet by wrapping the metal around a copper wire and sending electricity through it. It all has to do with the arrangement of the electrons within the metal.
Why is an electromagnet not a permanet magnet?
because the copper wire in it is only magnetic when there is electricity running through it so when you turn of the electricity soure it is no longer magnetic
How does an electromagnetic differ from a permanent magnet?
An electromagnet is only magnetic while electricity is being passed through it. When the electricity is turned off, it no longer works.
What is a electromagnet and what does it need to properly function?
A powerful magnet that only creates a magnetic field when a massive amount of power cycles through the magnet. To properly function, the magnet needs to be connected to a powerful source of electricity.
Does electricity make metal?
Electricity doesn't make metal. Since electricity only travels through it.
How will your computer hibernate with out electricity?
A computer is only not using electricity when it's switched off.
