What are open and closed circuits?

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

How does an electric bulb produce light?

MEDIUM

7th CBSE

IMPORTANT

Science Now 7>Chapter 13 - Electric Current and Its Effects>EXERCISE>Q E

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

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.