(a) What is an electromagnet? List any two uses.
(b) Draw a labelled diagram to show how an electromagnet is made.

(c) State the purpose of soft iron core used in making an electromagnet.

(d) List two ways of increasing the strength of an electromagnet if the material of the electromagnet is fixed.

Question

(a) What is an electromagnet? List any two uses.
(b) Draw a labelled diagram to show how an electromagnet is made.

(c) State the purpose of soft iron core used in making an electromagnet.

(d) List two ways of increasing the strength of an electromagnet if the material of the electromagnet is fixed.

Philoid · Accepted Answer

(a) Electromagnet is a device which is used to generate magnetism when electric current is passed through it. It can be made by winding conducting wire around the core.

Uses:

1. In magnetic latches

2. Used in cranes for lifting metallic objects

(b)

(c) Soft iron core is used in electromagnet to increase its magnetic strength.

(d) The strength of the electromagnet can be increased by:

1. Increase the number of turns of the coil.

2. By increasing the magnitude of current.

(a) What is an electromagnet? List any two uses.(b) Draw a labelled diagram to show how an electromagnet is made.(c) State the purpose of soft iron core used in making an electromagnet.(d) List two ways of increasing the strength of an electromagnet if the material of the electromagnet is fixed.