Electromagnets

Question 1

What is an electromagnet

Answer 1

an electromagnet is a magnet that runs on electricity

Question 2

what is an electromagnet made out of

Answer 2

it is normally formed from a soft iron core surrounded by a coil of wire (a solenoid)

Question 3

What happens when the electricity is turned on

Answer 3

when the electricity is turned on the iron core becomes magnetised

Question 4

what main parts make motor

Answer 4

A power supply – mostly DC for a simple motor.
Field Magnet – could be a permanent magnet or an electromagnet.
An Armature or rotor.
Commutator.
Brushes.

Question 5

Why does the motor spin continuously without stopping

Answer 5

The coil rotates continuously due to the current passing through a magnetic field. The moments are kept contain consistent due to the polarity changing in the electromagnet by the commutator changing the current through the armatures when they pass the brushes.