EASY
7th CBSE
IMPORTANT
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Draw an electric circuit diagram with an electric cell, a bulb, wires and an electric switch.

Important Questions on Electric Current and Its Effects

EASY
7th CBSE
IMPORTANT
NEW SCIENCE In Everyday Life>Chapter 13 - Electric Current and Its Effects>Let's Remember>Q A

Write T for the True and F for the false statements. Correct the false statements.
A source of electric current is not a necessary condition for an electric current to flow in an electric circuit.

EASY
7th CBSE
IMPORTANT
NEW SCIENCE In Everyday Life>Chapter 13 - Electric Current and Its Effects>Let's Remember>Q A
Write T for the True and F for the False statements. Correct the false statements.
The filament of an incandescent light bulb glows because of the heating effect of electric current.
EASY
7th CBSE
IMPORTANT
NEW SCIENCE In Everyday Life>Chapter 13 - Electric Current and Its Effects>Let's Remember>Q A
Write T for the True and F for the False statements. Correct the false statements.
An electric fuse protects the appliances in the circuit.
EASY
7th CBSE
IMPORTANT
NEW SCIENCE In Everyday Life>Chapter 13 - Electric Current and Its Effects>Let's Remember>Q B
What are the possible dangers of not using a fuse in an electric circuit?
EASY
7th CBSE
IMPORTANT
NEW SCIENCE In Everyday Life>Chapter 13 - Electric Current and Its Effects>Let's Remember>Q 1
Write T for the True and F for the False statements. Correct the false statements.
A current carrying conductor can deflect a magnetic compass.
EASY
7th CBSE
IMPORTANT
NEW SCIENCE In Everyday Life>Chapter 13 - Electric Current and Its Effects>Let's Remember>Q 2
Write T for the True and F for the False statements. Correct the false statements.
An electromagnet is based on the heating effect of electric current.
EASY
7th CBSE
IMPORTANT
NEW SCIENCE In Everyday Life>Chapter 13 - Electric Current and Its Effects>Let's Remember>Q 3
Write T for the True and F for the False statements. Correct the false statements.
The strength of an electromagnet does not depend on the number of turns of the wire around the core.
EASY
7th CBSE
IMPORTANT
NEW SCIENCE In Everyday Life>Chapter 13 - Electric Current and Its Effects>Let's Remember>Q 4
Write T for the True and F for the False statements. Correct the false statements.
An electromagnet exerts a greater magnetic force on small iron pieces when the current passing through it is switched off.