EASY
7th CBSE
IMPORTANT
Earn 100

Make a list of some electrical appliances which use heating effect of current.

Important Questions on Electric Current and its Effects

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.
EASY
7th CBSE
IMPORTANT
Science Booster>Chapter 15 - Electric Current and its Effects>PRACTICE TIME>Q D
What are the factors which affect the amount of heat produced by a current-carrying conductor?
EASY
7th CBSE
IMPORTANT
Science Booster>Chapter 15 - Electric Current and its Effects>PRACTICE TIME>Q D
What is an ISI mark? What is its significance?
MEDIUM
7th CBSE
IMPORTANT
Science Booster>Chapter 15 - Electric Current and its Effects>PRACTICE TIME>Q D
How can we increase the strength of an electromagnet?
MEDIUM
7th CBSE
IMPORTANT
Science Booster>Chapter 15 - Electric Current and its Effects>PRACTICE TIME>Q E
How will you show experimentally that when the amount of current is increased through a conductor, it produces more heat?
MEDIUM
7th CBSE
IMPORTANT
Science Booster>Chapter 15 - Electric Current and its Effects>PRACTICE TIME>Q E
What is an electric fuse? How does it work and what is its significance?
MEDIUM
7th CBSE
IMPORTANT
Science Booster>Chapter 15 - Electric Current and its Effects>PRACTICE TIME>Q E
Explain the structure and working of an electric bell with the help of a diagram.
MEDIUM
7th CBSE
IMPORTANT
Science Booster>Chapter 15 - Electric Current and its Effects>PRACTICE TIME>Q E
Which of the following electromagnets is the strongest?