What is an electromagnet? Give two uses of electromagnets. Name two factors on which the strength of an electromagnet depends short note
Answers
Answer:
If a soft iron bar is placed inside the solenoid, and the current switched on, the iron bar becomes temporarily magnetized. This is the principle of the electromagnet.
The strength of an electromagnet depends on:
The strength of the current passing through the coil, the greater the current, the greater the strength. This because the current increases there is more flow of electrons which in turn increases the magnetic field around it.
The number of turns in the coils, the greater the number of coils, the greater the strength. This is because more the number of coils, more uniformity is obtained in the magnetic field and hence it is more stronger.
Whether the core is made up of a soft or hard magnetic material. Soft iron core magnetizes more quickly than hard magnetic materials like steel.
An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. Electromagnets usually consist of wire wound into a coil.
Uses of Electromagnet-
1. The electric bells are based an principle of electromagnet.
2. The electromagnets are also used in motors and generators.
The strength of an electromagnet depends on:
The strength of the current passing through the coil, the greater the current, the greater the strength. This because the current increases there is more flow of electrons which in turn increases the magnetic field around it.
The number of turns in the coils, the greater the number of coils, the greater the strength. This is because more the number of coils, more uniformity is obtained in the magnetic field and hence it is more stronger.
Whether the core is made up of a soft or hard magnetic material. Soft iron core magnetizes more quickly than hard magnetic materials like steel.
hope it will help you.
please mark it as brainliest.