MEDIUM
7th CBSE
IMPORTANT
Earn 100

What do you mean by the heating effect of electric current?

Important Questions on Electric Current and Its Effects

MEDIUM
7th CBSE
IMPORTANT
Science Now 7>Chapter 13 - Electric Current and Its Effects>EXERCISE>Q E
What do you mean by the magnetic effect of electric current?
EASY
7th CBSE
IMPORTANT
Science Now 7>Chapter 13 - Electric Current and Its Effects>EXERCISE>Q E
What is a solenoid?
MEDIUM
7th CBSE
IMPORTANT
Science Now 7>Chapter 13 - Electric Current and Its Effects>EXERCISE>Q F
What is an electric fuse? Explain how a fuse helps to protect a circuit.
HARD
7th CBSE
IMPORTANT
Science Now 7>Chapter 13 - Electric Current and Its Effects>EXERCISE>Q F
What is an electromagnet? Suggest any two methods to increase the strength of an electromagnet.
HARD
7th CBSE
IMPORTANT
Science Now 7>Chapter 13 - Electric Current and Its Effects>EXERCISE>Q F
Explain one experiment to show the magnetic effect of electric current.
HARD
7th CBSE
IMPORTANT
Science Now 7>Chapter 13 - Electric Current and Its Effects>EXERCISE>Q F
Describe the construction and working of an electric bell.
MEDIUM
7th CBSE
IMPORTANT
Science Now 7>Chapter 13 - Electric Current and Its Effects>EXERCISE>Q G

Can you think of an instance where the heating effect of electric current causes wastage of electricity?

MEDIUM
7th CBSE
IMPORTANT
Science Now 7>Chapter 13 - Electric Current and Its Effects>EXERCISE>Q G

When the fuse blew off, the electrician quickly fixed it with a copper wire because he did not have a proper fuse wire. Do you think he did the right thing?