EASY
7th CBSE
IMPORTANT
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Write one difference between:
temporary and permanent magnet.

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 F
Define electric current.
EASY
7th CBSE
IMPORTANT
Expanded Universal Science 7>Chapter 16 - Electric Current and Simple Circuits>ASSESSMENT ZONE>Q F
Mention the components required to construct an electrical circuit.
EASY
7th CBSE
IMPORTANT
Expanded Universal Science 7>Chapter 16 - Electric Current and Simple Circuits>ASSESSMENT ZONE>Q F
What is a miniature circuit breaker?
EASY
7th CBSE
IMPORTANT
Expanded Universal Science 7>Chapter 16 - Electric Current and Simple Circuits>ASSESSMENT ZONE>Q F
What is an electric fuse? What is its function?
EASY
7th CBSE
IMPORTANT
Expanded Universal Science 7>Chapter 16 - Electric Current and Simple Circuits>ASSESSMENT ZONE>Q F
Name some appliances in which electromagnets are used.
EASY
7th CBSE
IMPORTANT
Expanded Universal Science 7>Chapter 16 - Electric Current and Simple Circuits>ASSESSMENT ZONE>Q F
How short-circuit occurs in an electric fuse?
MEDIUM
7th CBSE
IMPORTANT
Expanded Universal Science 7>Chapter 16 - Electric Current and Simple Circuits>ASSESSMENT ZONE>Q G
Give reasons of the following:
MCB is better than electric fuse.
EASY
7th CBSE
IMPORTANT
Expanded Universal Science 7>Chapter 16 - Electric Current and Simple Circuits>ASSESSMENT ZONE>Q G
Give reasons:
Tin-lead alloy is used to make fuse.