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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)
How is a electromagnet diffrent then a permanent magnet?
An electromagnet is a temporary magnet that only produces a magnetic field when an electric current is flowing through it, while a permanent magnet retains its magnetism without needing an external electric current. Additionally, the strength of an electromagnet can be easily adjusted by changing the amount of current flowing through it, while the strength of a permanent magnet is fixed.
How does a Diode work in a Magnet-Powered Flashlight?
In a magnet-powered flashlight, a diode acts as a one-way valve for electrical current. It allows current generated by the magnet passing through a coil to flow in only one direction, ensuring that the flashlight's LED light only illuminates when the magnet moves and generates electricity. This helps to convert the kinetic energy from the movement of the magnet into usable electrical energy for the flashlight.
Why is an electro magnet a temporary magnet?
An electromagnet is a temporary magnet because it only produces a magnetic field when an electric current is running through it. When the current is turned off, the magnetic field collapses, and the electromagnet loses its magnetic properties.
How could you use a magnet to make the bulb light up?
This may take quite a bit of effort, as most incandescent light bulbs use a fair bit of current. Find the smallest bulb with the lowest operating voltage, from a small flashlight. Get as many turns as you can from your piece of wire, wrapping it around and around. Connect the bulb across the ends of the wire. One end goes to the centre contact and the other to the side of the bulb. (assuming a small Edison screw type bulb.) Now move the magnet rapidly inside the coil you made with the wire. The lamp will only blink during the movement of the magnet. By rapidly moving the magnet back and forth, you can generate an almost continuous supply of AC current and keep the bulb alight.
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
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.
Can a magnet have 3 poles?
Of course . You can make such a magnet easily using a safety pin. Take a safety pin and magnetize it using a permanent magnet. Then unfold it. The ends will have same poles and at the middle you will have the other. So you can have a magnet with three poles. Verify it using compass.
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.
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)
How will your computer hibernate with out electricity?
A computer is only not using electricity when it's switched off.
Could glucose get separated from a magnet?
Glucose is not a metal and can not be separated using a magnet.
How is a electromagnet diffrent then a permanent magnet?
An electromagnet is a temporary magnet that only produces a magnetic field when an electric current is flowing through it, while a permanent magnet retains its magnetism without needing an external electric current. Additionally, the strength of an electromagnet can be easily adjusted by changing the amount of current flowing through it, while the strength of a permanent magnet is fixed.
