EASY
7th CBSE
IMPORTANT
Earn 100

Write T for the True and F for the False statements. Correct the false statements.
In an electric bell, the hammer strikes the gong because the gong is magnetic.

Important Questions on Electric Current and Its Effects

EASY
7th CBSE
IMPORTANT
NEW SCIENCE In Everyday Life>Chapter 13 - Electric Current and Its Effects>Exercises>Q A
When we connect two cells to form a battery, we should connect the positive terminal of one cell to the _____ (positive/negative) terminal of the other cell.
EASY
7th CBSE
IMPORTANT
NEW SCIENCE In Everyday Life>Chapter 13 - Electric Current and Its Effects>Exercises>Q A
In an electric circuit, the connecting wire should be made of a _____ (conductor/insulator).
EASY
7th CBSE
IMPORTANT
NEW SCIENCE In Everyday Life>Chapter 13 - Electric Current and Its Effects>Exercises>Q A
A device that is used to open or close an electrical circuit is called a _____ (fuse/switch).
EASY
7th CBSE
IMPORTANT
NEW SCIENCE In Everyday Life>Chapter 13 - Electric Current and Its Effects>Exercises>Q A
A _____ (fuse/switch) works on the heating effect of electric current.
EASY
7th CBSE
IMPORTANT
NEW SCIENCE In Everyday Life>Chapter 13 - Electric Current and Its Effects>Exercises>Q A
In an electric bell, the electromagnet is magnetised when the switch is _____ (on/off).
EASY
7th CBSE
IMPORTANT
NEW SCIENCE In Everyday Life>Chapter 13 - Electric Current and Its Effects>Exercises>Q B
What is a drawing of an electrical circuit with standard symbols called?
EASY
7th CBSE
IMPORTANT
NEW SCIENCE In Everyday Life>Chapter 13 - Electric Current and Its Effects>Exercises>Q B
What happens when the switch is 'on' in an electric circuit?
EASY
7th CBSE
IMPORTANT
NEW SCIENCE In Everyday Life>Chapter 13 - Electric Current and Its Effects>Exercises>Q B
Why does the filament of an incandescent bulb glow?