EASY
7th CBSE
IMPORTANT
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A current flowing through a conductor produces heat in the conductor.

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Important Questions on Electric Current and Its Effects

EASY
7th CBSE
IMPORTANT
Science Now 7>Chapter 13 - Electric Current and Its Effects>EXERCISE>Q C
A thick copper wire can be used as a fuse wire in an electric fuse.
EASY
7th CBSE
IMPORTANT
Science Now 7>Chapter 13 - Electric Current and Its Effects>EXERCISE>Q C
Electric fuse works on the principle of magnetic effect of current.
EASY
7th CBSE
IMPORTANT
Science Now 7>Chapter 13 - Electric Current and Its Effects>EXERCISE>Q C
Electric bulb produces light by the heating effect of current.
MEDIUM
7th CBSE
IMPORTANT
Science Now 7>Chapter 13 - Electric Current and Its Effects>EXERCISE>Q C
An electromagnet can retain its magnetic power even after the current passing through it is switched off.
EASY
7th CBSE
IMPORTANT
Science Now 7>Chapter 13 - Electric Current and Its Effects>EXERCISE>Q D
Give one word for each of the following.
A closed path for the flow of electric current
EASY
7th CBSE
IMPORTANT
Science Now 7>Chapter 13 - Electric Current and Its Effects>EXERCISE>Q D
The SI unit of electric current is
EASY
7th CBSE
IMPORTANT
Science Now 7>Chapter 13 - Electric Current and Its Effects>EXERCISE>Q D
A cylindrical-shaped coil that exhibits magnetic properties when current is passed through it.
(Bar magnet/Electromagnet)
MEDIUM
7th CBSE
IMPORTANT
Science Now 7>Chapter 13 - Electric Current and Its Effects>EXERCISE>Q D
Name the device that measures the amount of current flowing in the circuit.

(Choose from the following: Voltmeter/Ammeter)