EASY
7th CBSE
IMPORTANT
Earn 100

The strength of an electromagnet does not depend upon the

50% studentsanswered this correctly

Important Questions on Electric Current and its Effects

EASY
7th CBSE
IMPORTANT
Science Booster>Chapter 15 - Electric Current and its Effects>PRACTICE TIME>Q A
A fuse is a
EASY
7th CBSE
IMPORTANT
Science Booster>Chapter 15 - Electric Current and its Effects>PRACTICE TIME>Q C
Name a device which uses the heating effect of electric current to give light.
EASY
7th CBSE
IMPORTANT
Science Booster>Chapter 15 - Electric Current and its Effects>PRACTICE TIME>Q C
What is a combination of two or three electric cells together called?

(Choose from the following: Electric switch/Battery)

EASY
7th CBSE
IMPORTANT
Science Booster>Chapter 15 - Electric Current and its Effects>PRACTICE TIME>Q C

Name the switch used in an electric circuit to protect from damage caused by overload or short-circuit.

(Choose from: MCB/ LCB/ TCB)

EASY
7th CBSE
IMPORTANT
Science Booster>Chapter 15 - Electric Current and its Effects>PRACTICE TIME>Q C
Name the instrument used to measure flow of electric current.
EASY
7th CBSE
IMPORTANT
Science Booster>Chapter 15 - Electric Current and its Effects>PRACTICE TIME>Q C
What is used to separate iron scrap from the junk in industries?
(Choose one of the following: Electromagnet/ Natural magnet).
EASY
7th CBSE
IMPORTANT
Science Booster>Chapter 15 - Electric Current and its Effects>PRACTICE TIME>Q D
Make a list of some electrical appliances which use heating effect of current.
MEDIUM
7th CBSE
IMPORTANT
Science Booster>Chapter 15 - Electric Current and its Effects>PRACTICE TIME>Q D
What are electromagnets? Write their five uses at least.