Define the following term:

Heating effect of current.

Important Questions on Electric Current and Its Effects

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.

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