EASY
7th CBSE
IMPORTANT
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Electric current produces heat due to resistance to the flow of current.

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Important Questions on Electric Current and Its Effects

EASY
7th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 17 - Electric Current and Its Effects>EXERCISE>Q 7
Magnetic effect of electric current was discovered by Hans Christian Oersted.
EASY
7th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 17 - Electric Current and Its Effects>EXERCISE>Q 8

State whether the given statement is True or False. Correct the false statement.

An electric bell consists of a solenoid.

EASY
7th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 17 - Electric Current and Its Effects>EXERCISE>Q I

Give one- or two-word answer for the following.

A source of electric current in an electric circuit

EASY
7th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 17 - Electric Current and Its Effects>EXERCISE>Q I
Give one- or two-word answers for the following.
A component of the electric circuit is made up of conducting material through which electric current flows.
EASY
7th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 17 - Electric Current and Its Effects>EXERCISE>Q I
Give one- or two-word answers for the following.
It is used to stop or start the flow of electric current in an electric circuit.
EASY
7th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 17 - Electric Current and Its Effects>EXERCISE>Q I

Give one- or two-word answers for the following.

Needle of this instrument deflects when kept near a current-carrying wire.

EASY
7th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 17 - Electric Current and Its Effects>EXERCISE>Q I

Give one- or two-word answers for the following.
A magnet is made using electric current.

MEDIUM
7th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 17 - Worksheet Unit 5>WORKSHEET>Q 3

The magnetic effect of electric current does not depend on the number of turns in a solenoid.