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What else can I help you with?
How do electromagnet fire alarms work?
the electromagnet makes the door close when a fire alarm goes off
What enginner makes electromagnet?
The Electric Physics engineer would
Do you have to connect a cell to work an electromagnet?
A cell or other (DC) power source must, indeed, be connected to an electromagnet to make it work. It is an electromagnet. Surf the link to our friends at Wikipedia. It's a good article, and the pics are cool.
How magnets are used in locks?
An electromagnet makes a great door lock. The steel in the door will stay put until the electromagnet is turned off.
What makes a electromagnet stronger than a solenoid?
The strength of an electromagnet is determined by the number of windings, the current flowing through the windings, and the permeability of the core.
How are magnets used in electromagnets?
An electromagnet makes a great door lock. The steel in the door will stay put until the electromagnet is turned off.
Explain how an electromagnet makes the sounds you hear in earphones?
Search on the Internet for it.
What does a battery contribute to an electromagnet to help it work?
A core
How does an electromagnet work in blender?
it connets to the bottom of the machine
Is the key have anything to do with the car starting?
When the key is turned on, it closes an electrical circuit. That closes another electrical circuit which makes and electromagnet work. The electromagnet closes a circuit between the battery and the starter. That starts the car. So the key does not actually do any work to start the car but it tells the various circuits to get busy and start the car.
What must you have for an electromagnet to work that you don't need for a regular magnet?
To make an electromagnet work, you need an electric current flowing through a coil of wire, which is not needed for a regular magnet.
In an electromagnet what are the springy pieces of metal or carbon that makes contact with the commutators contacts?
brushes
