MEDIUM
7th CBSE
IMPORTANT
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How can the strength of an electromagnet be increased?

Important Questions on Electric Current and Its Effects

EASY
7th CBSE
IMPORTANT
SCIENCE MADE EASY>Chapter 14 - Electric Current and Its Effects>EXERCISE>Q 1
The use of an electric fuse is based on the _____ effect of current.
EASY
7th CBSE
IMPORTANT
SCIENCE MADE EASY>Chapter 14 - Electric Current and Its Effects>EXERCISE>Q 2
Nichrome wire is used for making ____
EASY
7th CBSE
IMPORTANT
SCIENCE MADE EASY>Chapter 14 - Electric Current and Its Effects>EXERCISE>Q 3
The device used to prevent the flow of excess current is _____.
EASY
7th CBSE
IMPORTANT
SCIENCE MADE EASY>Chapter 14 - Electric Current and Its Effects>EXERCISE>Q 4
Which of the following does not use the heating effect of current?
EASY
7th CBSE
IMPORTANT
SCIENCE MADE EASY>Chapter 14 - Electric Current and Its Effects>EXERCISE>Q 5
Which of the following is not a circuit element?
EASY
7th CBSE
IMPORTANT
SCIENCE MADE EASY>Chapter 14 - Electric Current and Its Effects>EXERCISE>Q 6
In the Figure, electric current is flowing from _____.
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HARD
7th CBSE
IMPORTANT
SCIENCE MADE EASY>Chapter 14 - Electric Current and Its Effects>EXERCISE>Q 7
In the figure, the magnetic needle _____.
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EASY
7th CBSE
IMPORTANT
SCIENCE MADE EASY>Chapter 14 - Electric Current and Its Effects>EXERCISE>Q 1
No appliances work when the circuit is _____. (Open/Closed)