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Physics CBSE Live product
Class 7 (2025-26)
Electricity: Circuits and their components
Revision IV - Electricity: Circuits and their components
9.
Electrical components
Question:
5
m.
Choose the correct answer below:
1.
Torchlight
-
A portable device used to produce light, typically powered by electric cells or a battery
A device with thin wire inside a lamp that glows when current passes through it
A portable device used to produce light, not powered by electric cells or a battery
A device that converts chemical energy into electrical energy
2.
Electric cell
-
An electric device with two positive terminals, which are clearly marked
An electric device with two terminals, a positive terminal and a negative terminal, which are not clearly marked
An electric device with one terminal only which are clearly marked
An electric device with two terminals, a positive terminal and a negative terminal, which are clearly marked
3.
LED
-
It does not have a filament and has two terminals with fixed polarity: longer wire for negative terminal, shorter wire for positive terminal
It does not have a filament and has two terminals with fixed polarity: longer wire for positive terminal, shorter wire for negative terminal
It does not have a filament and has two terminals with unfixed polarity: both positive and negative terminal
It has a filament and has two terminals with fixed polarity: longer wire for positive terminal, shorter wire for negative terminal
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