EASY
7th CBSE
IMPORTANT
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Which of these is not a part of a circuit?

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Important Questions on Electric Currents and Circuits

EASY
7th CBSE
IMPORTANT
New Science Ahead>Chapter 14 - Electric Currents and Circuits>Exercises>Q 2
Based on which of the following effects of current does an electric fuse work?
EASY
7th CBSE
IMPORTANT
New Science Ahead>Chapter 14 - Electric Currents and Circuits>Exercises>Q 3
Heat produced in a wire due to current flowing through it is not dependent on _____.
EASY
7th CBSE
IMPORTANT
New Science Ahead>Chapter 14 - Electric Currents and Circuits>Exercises>Q 4

Which of these uses the heating effects of electricity?

(i) electric bell

(ii) electric fuse

(iii) MP3 player

(iv) electric bulb

EASY
7th CBSE
IMPORTANT
New Science Ahead>Chapter 14 - Electric Currents and Circuits>Exercises>Q 5
Which of the following has a heating element with a low melting point?
MEDIUM
7th CBSE
IMPORTANT
New Science Ahead>Chapter 14 - Electric Currents and Circuits>Exercises>Q 6
A solenoid carrying a current behaves like a/an _____.
EASY
7th CBSE
IMPORTANT
New Science Ahead>Chapter 14 - Electric Currents and Circuits>Exercises>Q 7
The electric bell has a/an _____.
EASY
7th CBSE
IMPORTANT
New Science Ahead>Chapter 14 - Electric Currents and Circuits>Exercises>Q 8

Which of these are not properties of electromagnets?

(i) An increase in current increases its strength.

(ii) They are permanent magnets.

(iii) They remain magnetised even after the current is switched off.

(iv) They are of varying shapes and sizes.

EASY
7th CBSE
IMPORTANT
New Science Ahead>Chapter 14 - Electric Currents and Circuits>Exercises>Q 1
A depiction of an electric circuit using symbols is called a ____ diagram.