HARD
7th CBSE
IMPORTANT
Earn 100

In which direction is the deflection in your diagram?


Important Questions on Electric Current and Its Effects
HARD
7th CBSE
IMPORTANT

HARD
7th CBSE
IMPORTANT
Study this picture of a simple electromagnet and answer the question.
Correct the diagram to allow electricity to flow through the circuit.

HARD
7th CBSE
IMPORTANT
Would the electromagnet work if the wire that is wrapped around the core were not insulated? Explain your answer.


HARD
7th CBSE
IMPORTANT
Study this picture of a simple electromagnet and answer the question.
What would happen if the direction of electric current were reversed?

HARD
7th CBSE
IMPORTANT

EASY
7th CBSE
IMPORTANT

MEDIUM
7th CBSE
IMPORTANT
Electricity is a form of energy. Energy can be converted from one form to another. Fill in the blanks with words from the box.
(mechanical, heat, electrical, light)
When we run an electric grinder in the kitchen, electrical energy is converted into _____ energy.

EASY
7th CBSE
IMPORTANT
Here is a simple diagram of an electric bell. At which points do the chemical energy to electrical energy conversion take place?
