HARD
7th CBSE
IMPORTANT
Earn 100

What is electrical resistance? On what does the resistance of a piece of material depend? How does resistance affect current?

Important Questions on Electricity

MEDIUM
7th CBSE
IMPORTANT
Basic Science For Class 7>Chapter 7 - Electricity>Exercises>Q C
What is a fuse? How does it work?
HARD
7th CBSE
IMPORTANT
Basic Science For Class 7>Chapter 7 - Electricity>Exercises>Q C
Explain with the help of a diagram the construction and working of an electric bell.
EASY
7th CBSE
IMPORTANT
Basic Science For Class 7>Chapter 7 - Electricity>Exercises>Q D
The greater the _____ across a device, the greater is the current through it. (Choose from: Voltage/ EMF/ Resistance)
EASY
7th CBSE
IMPORTANT
Basic Science For Class 7>Chapter 7 - Electricity>Exercises>Q D
The connections between components are represented by _____ (Straight lines/circles) in a circuit diagram.
EASY
7th CBSE
IMPORTANT
Basic Science For Class 7>Chapter 7 - Electricity>Exercises>Q D
A long wire has _____ resistance than a short wire.
EASY
7th CBSE
IMPORTANT
Basic Science For Class 7>Chapter 7 - Electricity>Exercises>Q D
An _____ is a condition in which a wire carries a current that is more than what is safe.
EASY
7th CBSE
IMPORTANT
Basic Science For Class 7>Chapter 7 - Electricity>Exercises>Q D
A closely wound length of wire is called a _____. (screw gauge/coil)
EASY
7th CBSE
IMPORTANT
Basic Science For Class 7>Chapter 7 - Electricity>Exercises>Q E
The magnitude of a current flowing through a device depends