Question

Name two factors on which the strength of magnetic field of an electromagnet depends.​

Answer 1

Answer:

Explanation: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.

Answer 2

Answer:

magnetic field=

an area around a magnet or materials that behave like a magnet, where there is a force that will attract some metals towards it

Explanation:

Magnetic Field Strength for Electromagnets

Then to summarise, the strength or intensity of a coils magnetic field depends on the following factors. The number of turns of wire within the coil. The amount of current flowing in the coil. The type of core material.