EASY
7th CBSE
IMPORTANT
Earn 100

Which device is used to open or close an electric circuit?

(Choose from the following: Cell/Switch)

100% studentsanswered this correctly

Important Questions on Electric Current and its Effects

MEDIUM
7th CBSE
IMPORTANT
SCIENCE ROUTE 7>Chapter 13 - Electric Current and its Effects>EXERCISES>Q IV
What is a tightly wound coil found in an electrical appliance which heats up called?
EASY
7th CBSE
IMPORTANT
SCIENCE ROUTE 7>Chapter 13 - Electric Current and its Effects>EXERCISES>Q V
Define an electric circuit.
MEDIUM
7th CBSE
IMPORTANT
SCIENCE ROUTE 7>Chapter 13 - Electric Current and its Effects>EXERCISES>Q V
What is an electric fuse? Write one use of it.
EASY
7th CBSE
IMPORTANT
SCIENCE ROUTE 7>Chapter 13 - Electric Current and its Effects>EXERCISES>Q V
What is the heating effect of current?
MEDIUM
7th CBSE
IMPORTANT
SCIENCE ROUTE 7>Chapter 13 - Electric Current and its Effects>EXERCISES>Q V
What is a solenoid? Give one use of it.
MEDIUM
7th CBSE
IMPORTANT
SCIENCE ROUTE 7>Chapter 13 - Electric Current and its Effects>EXERCISES>Q V
How does electromagnet work in an electric bell?
MEDIUM
7th CBSE
IMPORTANT
SCIENCE ROUTE 7>Chapter 13 - Electric Current and its Effects>EXERCISES>Q VI
Explain the heating effect of electric current with an activity.
HARD
7th CBSE
IMPORTANT
SCIENCE ROUTE 7>Chapter 13 - Electric Current and its Effects>EXERCISES>Q VI
What is magnetic effect of electric current? Describe an activity to demonstrate it.