MEDIUM
7th CBSE
IMPORTANT
Earn 100

Mention four applications of electromagnets.

Important Questions on Electricity

MEDIUM
7th CBSE
IMPORTANT
Basic Science For Class 7>Chapter 7 - Electricity>Exercises>Q B
What is a circuit diagram? Draw the circuit diagram of a torch which works on three cells.
EASY
7th CBSE
IMPORTANT
Basic Science For Class 7>Chapter 7 - Electricity>Exercises>Q B
Identify the following symbol. Also mark the positive and negative terminals in the symbol for the cell.
Question Image
EASY
7th CBSE
IMPORTANT
Basic Science For Class 7>Chapter 7 - Electricity>Exercises>Q B
Identify the following symbol. Also mark the positive and negative terminals in the symbol for the cell.
Question Image
EASY
7th CBSE
IMPORTANT
Basic Science For Class 7>Chapter 7 - Electricity>Exercises>Q B
Identify the following symbol. Also mark the positive and negative terminals in the symbol for the cell.
EASY
7th CBSE
IMPORTANT
Basic Science For Class 7>Chapter 7 - Electricity>Exercises>Q B
Identify the following symbol. Also mark the positive and negative terminals in the symbol if it is a cell.
Question Image
MEDIUM
7th CBSE
IMPORTANT
Basic Science For Class 7>Chapter 7 - Electricity>Exercises>Q B
How is the heat produced by an electric current related to resistance and the magnitude of the current?
MEDIUM
7th CBSE
IMPORTANT
Basic Science For Class 7>Chapter 7 - Electricity>Exercises>Q B
Why is a long and thin tungsten filament used in a bulb?
MEDIUM
7th CBSE
IMPORTANT
Basic Science For Class 7>Chapter 7 - Electricity>Exercises>Q B
Mention two problems associated with the heating effect of electric current.