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Physics CBSE Live product
Class 7 (2025-26)
Electricity: Circuits and their components
Revision I - Electricity: Circuits and their components
8.
Electric circuits and incandescent lamps
Question:
5
m.
Choose the best answer:
1.
Glow of an electric lamp
-
The lamp glows when the electric circuit is complete and opened, allowing current to flow
The lamp glows when the electric circuit is complete and closed, not allowing current to flow
The lamp glows when the electric circuit is incomplete and closed, allowing current to flow
The lamp glows when the electric circuit is complete and closed, allowing current to flow
2.
Direction
-
From the positive terminal to the positive terminal of the electric cell
From either terminal of the electric cell randomly
From the negative terminal to the negative terminal of the electric cell
From the positive terminal to the negative terminal of the electric cell
3.
Glow of an incandescent lamp
-
The lamp glows when current does not pass through its filament, regardless of which terminal is connected to positive or negative, as long as the circuit is complete
The lamp does not glow when current passes through its filament, regardless of which terminal is connected to positive or negative, as long as the circuit is complete
The lamp glows when electric current passes through its filament, as long as the circuit is complete, irrespective of terminal connections
The lamp glows when current passes through its filament, regardless of which terminal is connected to positive or negative, as long as the circuit is incomplete
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