Electromagnet

Author:NCERT
7th CBSE
IMPORTANT

Important Questions on Electromagnet

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IMPORTANT
Science Textbook of Competency Based Questions for Class VII>Electric Current and Its Effects>Electromagnet> Q 1

Prove with the help of an activity that an iron nail can be converted into a electromagnet.

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Science Textbook of Competency Based Questions for Class VII>Electric Current and Its Effects>Electromagnet> Q 2

What is an electromagnet? Describe a method of making an Electromagnet. List some of its uses.

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Science Textbook of Competency Based Questions for Class VII>Electric Current and Its Effects>Electromagnet> Q 3

Which one of the following is a stronger electromagnet? Why?

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Science Textbook of Competency Based Questions for Class VII>Electric Current and Its Effects>Electromagnet> Q 4

An insulated wire is used in an electromagnet.

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Science Textbook of Competency Based Questions for Class VII>Electric Current and Its Effects>Electromagnet> Q 5

Which of the following electromagnets is the strongest?

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Science Textbook of Competency Based Questions for Class VII>Electric Current and Its Effects>Electromagnet> Q 6

What is the difference between an electromagnet and a permanent magnet?

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Science Textbook of Competency Based Questions for Class VII>Electric Current and Its Effects>Electromagnet> Q 7

Describe three applications of electromagnets.

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Science Textbook of Competency Based Questions for Class VII>Electric Current and Its Effects>Electromagnet> Q 8

Describe how you can make an electromagnet in a laboratory.

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Science Textbook of Competency Based Questions for Class VII>Electric Current and Its Effects>Electromagnet> Q 9

Write the odd-one-out giving reason.

Heating effect of current, Bulb, Toaster, Electric iron, Electromagnet, Nichrome wire.