MEDIUM
7th CBSE
IMPORTANT
Earn 100

Write the odd-one out giving reason.

Electromagnet, Electric bell, Electric fuse, Speakers, Tape recorder

Important Questions on Electric Current and Its Effects

EASY
7th CBSE
IMPORTANT
Science 7>Chapter 14 - Electric Current and Its Effects>Summative ASSESSMENT>Q 1
Define a battery.
EASY
7th CBSE
IMPORTANT
Science 7>Chapter 14 - Electric Current and Its Effects>Summative ASSESSMENT>Q 2
DEFINE THE FOLLOWING TERM:

Closed electrical circuit.

MEDIUM
7th CBSE
IMPORTANT
Science 7>Chapter 14 - Electric Current and Its Effects>Summative ASSESSMENT>Q 3
Define the following term:

Heating effect of current.

MEDIUM
7th CBSE
IMPORTANT
Science 7>Chapter 14 - Electric Current and Its Effects>Summative ASSESSMENT>Q 4
DEFINE THE FOLLOWING TERM:

Magnetic effect of current.

EASY
7th CBSE
IMPORTANT
Science 7>Chapter 14 - Electric Current and Its Effects>Summative ASSESSMENT>Q 5
Define electric fuse.
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.