Electromagnet class 10 science
a type of magnet in which the magnetic field is produced by an electric current. It’s essentially made of a coil of wire and becomes magnetized only when electricity flows through it.
The strength of the magnetic field can be adjusted by:
- Increasing or decreasing the electric current.
- Changing the number of coils in the wire.
- Using a more magnetic material for the core.
Applications
Electric Motors and Generators: Used in machines that convert electrical energy to mechanical energy (motors) or vice versa (generators). These power countless devices, from household appliances to industrial machines.
Magnetic Resonance Imaging (MRI): In medical imaging, electromagnets create strong magnetic fields to visualize soft tissues in the body non-invasively.
Relays and Switches: Electromagnets are essential in devices like relays, which control circuits in cars, home appliances, and other electronics.