EASY
7th CBSE
IMPORTANT
Earn 100

Name five devices that work due to magnetic effect of electricity.

Important Questions on Electricity and Magnetism

EASY
7th CBSE
IMPORTANT
Galaxy Science in Everyday Life>Chapter 14 - Electricity and Magnetism>Quick Response>Q 3
Which metal is used as the core of an electromagnet?
EASY
7th CBSE
IMPORTANT
Galaxy Science in Everyday Life>Chapter 14 - Electricity and Magnetism>Quick Response>Q 4
What is magnetic levitation?
EASY
7th CBSE
IMPORTANT
Galaxy Science in Everyday Life>Chapter 14 - Electricity and Magnetism>Chapter Review>Q 1
______ made the first electric battery.
EASY
7th CBSE
IMPORTANT
Galaxy Science in Everyday Life>Chapter 14 - Electricity and Magnetism>Chapter Review>Q 2
Potential difference is measured in:
EASY
7th CBSE
IMPORTANT
Galaxy Science in Everyday Life>Chapter 14 - Electricity and Magnetism>Chapter Review>Q 3
We can strengthen electromagnets by increasing _____ of the coil.
EASY
7th CBSE
IMPORTANT
Galaxy Science in Everyday Life>Chapter 14 - Electricity and Magnetism>Chapter Review>Q 4
A magnetic needle placed near a current-carrying conductor deflects due to _____ effort of electricity.
EASY
7th CBSE
IMPORTANT
Galaxy Science in Everyday Life>Chapter 14 - Electricity and Magnetism>Chapter Review>Q 5
A microwave oven does not work when the door is open because of:
EASY
7th CBSE
IMPORTANT
Galaxy Science in Everyday Life>Chapter 14 - Electricity and Magnetism>Chapter Review>Q 6
In an electric bell, electromagnet attracts _____ towards itself.