0
they are used in doors to enter banks. they are often also used in padestrian gate locks. they ensure secure safety.
Wiki User
∙ 16y ago
Add your answer:
Earn +20 pts
What does a battery contribute to an electromagnet to help it work?
A core
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 is the role of an electromagnet when recycling metals?
The role of an electromagnet is to provide us withrecycled materials. The electromagnet is what picks up our heavy metal bits and bobs and moves it or drops it from a certain height so that the metal breaks and can be used again to make another car .
Why is iron easy to magnetize when used in an electromagnet?
Iron is a magnetic chemical element.
Which is better a permanent magnet or an electromagnet?
electromagnet
Strong temporary magnet formed when a current is passed through a coil of wire?
A magnetic field.
How does a scrap heap electromagnet help with recycling?
It very efficiently separates ferrous from non-ferrous scrap.
An electromagnet becomes storgner when the?
an electromagnet becomes storgner when the.
What is a magnet made by electric current?
An electromagnet.
What does an electromagnet operator do to release metal attached to the electromagnet?
burat
What does an electromagnet operator do to release metal attached to an electromagnet?
burat
What is a solenoid with a ferromagnetic core called?
Its called an electromagnet
