MEDIUM
7th CBSE
IMPORTANT
Earn 100

Heating effects of currents can be used in heaters and immersion rods. Think of the situations where this effect results in wastage of energy.

Important Questions on Electric Current and Its Effects

MEDIUM
7th CBSE
IMPORTANT
Interactive Science 7>Chapter 14 - Electric Current and Its Effects>SUMMATIVE ASSESSMENT>Q 4
What would you use to lift a tiny piece of iron accidentally fallen in your eye?
MEDIUM
7th CBSE
IMPORTANT
Interactive Science 7>Chapter 14 - Electric Current and Its Effects>SUMMATIVE ASSESSMENT>Q 5
The device that does not use an electromagnet:
MEDIUM
7th CBSE
IMPORTANT
Interactive Science 7>Chapter 14 - Electric Current and Its Effects>SUMMATIVE ASSESSMENT>Q 4
Electric bell works on the principle of _____ effect of electric current.
MEDIUM
7th CBSE
IMPORTANT
Interactive Science 7>Chapter 14 - Electric Current and Its Effects>SUMMATIVE ASSESSMENT>Q 4
Fuses are used in a circuit to prevent damage and chances of fire.
EASY
7th CBSE
IMPORTANT
Interactive Science 7>Chapter 14 - Electric Current and Its Effects>SUMMATIVE ASSESSMENT>Q 1
Name the material used in the filament of a bulb.
EASY
7th CBSE
IMPORTANT
Interactive Science 7>Chapter 14 - Electric Current and Its Effects>SUMMATIVE ASSESSMENT>Q 2
Write the full form of MCB. (Maximum circuit breaker/ Miniature circuit breaker)
HARD
7th CBSE
IMPORTANT
Interactive Science 7>Chapter 14 - Electric Current and Its Effects>FORMATIVE ASSESSMENT>Q 3
Why don't we use a fuse in circuits containing electrical cells?