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What variables could you investigate if you were given a simple electromagnet made from a coil of wire and a power supply?
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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
Electromagnet current of o5 a supply is 12v what resistance does the electromagnet have?
If you mean current , I = 5A & potential difference, V = 12V According to ohms law,I = V/R ,which means R = V/I = 12/5 = 2.4 Ω
The polarity of an eletromagnet is determined by the?
the way in which the positive & negative terminals on the battery or power supply are attached to the electromagnet. switching the leads from the positive terminal to the negative one, and the negative one to the positive terminal should reverse the polarity of your electromagnet.
Advantage of using electromagnet in an electric motor rather than a permanent magnet?
convert electrical energy to energy of motion...! the usage of an electromagnet allows us to control the flow of electrons to the electric rotor,thereby allowing us to control the working of the rotor,whereas with a permanent magnet there will be a continuous supply of energy which can be stopped only if the magnet is damaged or heated.
What is the definition of air supply?
a supply of air
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 would an electromagnet stop working?
An electromagnet would stop working if the electrical current flow is interrupted or if the power supply is disconnected. Additionally, if the coil overheats, it can damage the insulation and cause the electromagnet to fail.
What is the source of electricity in the electromagnets?
The source for an electromagnet can be any electrical supply. Batteries or derived from the mains, using a transformed and rectified supply.
How do you turn off an electromagnet?
This is what makes a magnet an electromagnet - the ability to turn it on and off... Anyway, electromagnets can be turned off with either the help of a switch, or just by disconnecting the power supply.
What materials do i need to make an electromagnet?
A nail, copper wire, paper clips, staples and power supply.
What is the difference between magnets and electromagnet?
an electromagnet is a magnet which is activated by electricity and it ceases to be a magnet once the electric supply is stopped whereas a magnet is a natural magnet which does not need electricity and continues to be a magnet whether it is supplied by electricity or not.
Electromagnet current of o5 a supply is 12v what resistance does the electromagnet have?
If you mean current , I = 5A & potential difference, V = 12V According to ohms law,I = V/R ,which means R = V/I = 12/5 = 2.4 Ω
The polarity of an eletromagnet is determined by the?
the way in which the positive & negative terminals on the battery or power supply are attached to the electromagnet. switching the leads from the positive terminal to the negative one, and the negative one to the positive terminal should reverse the polarity of your electromagnet.
Why is supply and demand important to environmental science?
Because environmental science involves costs and benefits which, as economic variables, are governed by supply and demand.
How strong is a electromagnet?
Well, it depends on the core you use, the thickness of the wire, how much the wire is coiled around the core, and especially the power supply.
What are the components of an electromagnet?
Coil and core, and you'll need a power supply to activate it.
What is the Force you supply to a simple machine?
a pulley
