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Subjects
Science CBSE
Class 8 New
Exploring the Investigative World of Science
Textbook Based Questions
4.
Magnetic Effects of Electric current
Exercise condition:
3
m.
Write a brief answer for the question given.
What is an electromagnet and how is it formed?
a.
What is an electromagnet?
It works only when current flows
Disease free
A temporary magnet formed using electric current
By passing current through a coil around an iron core
b.
How is an electromagnet produced?
By passing current through a coil around an iron core
Disease free
A temporary magnet formed using electric current
It works only when current flows
c.
Why is it called a temporary magnet?
A temporary magnet formed using electric current
By passing current through a coil around an iron core
Disease free
It works only when current flows
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