MEDIUM
7th CBSE
IMPORTANT
Earn 100

Why is a copper wire not used in the filament of a bulb? What will happen if we use a thick tungsten wire in an electric bulb?

Important Questions on Electric Current and Simple Circuits

EASY
7th CBSE
IMPORTANT
Expanded Universal Science 7>Chapter 16 - Electric Current and Simple Circuits>ASSESSMENT ZONE>Q G
What is the use of electromagnet in electric bell?
EASY
7th CBSE
IMPORTANT
Expanded Universal Science 7>Chapter 16 - Electric Current and Simple Circuits>ASSESSMENT ZONE>Q G
Why MCB or electric fuses are not used in a circuit containing electric cells?
MEDIUM
7th CBSE
IMPORTANT
Expanded Universal Science 7>Chapter 16 - Electric Current and Simple Circuits>ASSESSMENT ZONE>Q G
Draw the diagram of an electric bell and explain its working.