Question

a.
What is an electromagnet?
b.
List any of its two uses.
c. Draw a labelled diagram to show how an electromagnet is made.
d. What is the purpose of soft iron core used in making an electromagnet?​

Answer 1

Answer:

Electromagnets are used in all kinds of electric devices, including hard disk drives, speakers, motors, and generators, as well as in scrap yards to pick up heavy scrap metal. They're even used in MRI machines, which utilize magnets to take photos of your insides.

Soft iron core is used in electromagnets because they get easily magnetised/demagnetised when current is flowing or not flowing along the solenoid. Whereas, steel is a permanent magnet and does not lose it's magnetization even when the current is switched off.

Answer 2

Answer:

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