EASY
7th CBSE
IMPORTANT
Earn 100

Define electric fuse.

Important Questions on Electric Current and Its Effects

MEDIUM
7th CBSE
IMPORTANT
Science 7>Chapter 14 - Electric Current and Its Effects>Summative ASSESSMENT>Q 1
Why cannot copper wire be used as a fuse wire?
HARD
7th CBSE
IMPORTANT
Science 7>Chapter 14 - Electric Current and Its Effects>Summative ASSESSMENT>Q 2
A copper wire coil is suspended freely. When no current is passed through it, it comes to rest in any direction. Which direction will it point if the current is passed through it?
MEDIUM
7th CBSE
IMPORTANT
Science 7>Chapter 14 - Electric Current and Its Effects>Summative ASSESSMENT>Q 3
You must have seen birds sitting on an overhead electric cable comfortably. Once a while, a monkey (or any other small animal) swings between the two parallel wires, gets electrocuted and dies. Give explanation.
EASY
7th CBSE
IMPORTANT
Science 7>Chapter 14 - Electric Current and Its Effects>FORMATIVE & SUMMATIVE ASSESSMENTS>Q 1
Which of the following is the correct symbol of a cell?
EASY
7th CBSE
IMPORTANT
Science 7>Chapter 14 - Electric Current and Its Effects>FORMATIVE & SUMMATIVE ASSESSMENTS>Q 2
In an electric circuit, current starts from the
MEDIUM
7th CBSE
IMPORTANT
Science 7>Chapter 14 - Electric Current and Its Effects>FORMATIVE & SUMMATIVE ASSESSMENTS>Q 3
Heat produced in a resistor when current is passed through it depends upon
EASY
7th CBSE
IMPORTANT
Science 7>Chapter 14 - Electric Current and Its Effects>FORMATIVE & SUMMATIVE ASSESSMENTS>Q 4

The effect of current on which the use of a fuse is based on

MEDIUM
7th CBSE
IMPORTANT
Science 7>Chapter 14 - Electric Current and Its Effects>FORMATIVE & SUMMATIVE ASSESSMENTS>Q 5
Which of the following is the strongest electromagnet?