HARD
7th CBSE
IMPORTANT
Earn 100

Draw a labelled diagram of an electric bell. Explain its working.

Important Questions on Electric Current and its Effects

MEDIUM
7th CBSE
IMPORTANT
SCIENCE ROUTE 7>Chapter 13 - Electric Current and its Effects>EXERCISES>Q VI
Distinguish between an open and a closed circuit using circuit diagrams.
MEDIUM
7th CBSE
IMPORTANT
SCIENCE ROUTE 7>Chapter 13 - Electric Current and its Effects>EXERCISES>Q VI
Who discovered magnetic effect of the current? How does electrical cell produce electric current?
EASY
7th CBSE
IMPORTANT
SCIENCE ROUTE 7>Chapter 13 - Electric Current and its Effects>Brain Teasers
Why are the electric bulbs filled with a gas like argon?
MEDIUM
7th CBSE
IMPORTANT
SCIENCE ROUTE 7>Chapter 13 - Electric Current and its Effects>Brain Teasers
A bird can enjoy sitting on an electric line easily. But if a monkey swings on it so that it touches another parallel line, it gets killed instantly. Justify.
EASY
7th CBSE
IMPORTANT
SCIENCE ROUTE 7>Chapter 13 - Electric Current and its Effects>Brain Teasers
What will happen if a fuse wire is made up of high melting point?
MEDIUM
7th CBSE
IMPORTANT
SCIENCE ROUTE 7>Chapter 13 - Electric Current and its Effects>Brain Teasers
Why are the electric bulbs filled with a gas like argon?