GEOLOGY

EARTH SCIENCE

MAGNETISM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is a coil of wire with a current that is wrapped around a core of material that is easily magnetized?
A
Generator
B
Solenoid
C
Electromagnet
D
Transformer
Explanation: 

Detailed explanation-1: -An electromagnet is a coil of wire wrapped around an iron core. Electromagnet is a type of magnet in which a magnetic field is generated by an electric current. Current passing through the wire creates a magnetic field which is concentrated at the centre of the coil.

Detailed explanation-2: -An electromagnet is a solenoid wrapped around a bar of iron or other ferromagnetic material. A solenoid is a coil of wire with electric current flowing through it. This gives the coil north and south magnetic poles and a magnetic field.

Detailed explanation-3: -An electro magnet is a temporary magnet made by winding wire around an iron core. When current flows in the coil the iron becomes a magnet, and when the current is turned off it looses it’s magnetic properties.

Detailed explanation-4: -An electromagnet is a temporary magnet created by coiling a wire around a metal core, and passing a current through the wire.

Detailed explanation-5: -An electromagnetic coil is an electrical conductor such as a wire in the shape of a coil (spiral or helix).

There is 1 question to complete.