EASY
7th CBSE
IMPORTANT
Earn 100
Draw the symbol for the electric bulb of an electric circuit.
Important Questions on Electric Current and Its Effects
EASY
7th CBSE
IMPORTANT
A switch in the ‘off’ position.
EASY
7th CBSE
IMPORTANT
A battery with two cells.
EASY
7th CBSE
IMPORTANT
A connecting wire.
MEDIUM
7th CBSE
IMPORTANT
Match the following:
| Column A | Column B |
| 1. Core of an electromagnet | (a) Copper |
| 2. Filament of a light bulb | (b) Plastic |
| 3. Wire of a heating element | (c) Soft iron |
| 4. Insulation for a wire | (d) Nichrome |
| 5. Coil wire for an electromagnet | (e) Tungsten |
HARD
7th CBSE
IMPORTANT
HARD
7th CBSE
IMPORTANT
Look at the circuit diagram. (The bulbs are shown as glowing.) Is the circuit drawn correctly? Explain your answer. Correct the diagram where necessary.
HARD
7th CBSE
IMPORTANT
Look at the circuit diagram. (The bulbs are shown as glowing.) Is the circuit drawn correctly? Explain your answer. Correct the diagram where necessary.
HARD
7th CBSE
IMPORTANT
Draw the symbols for the following components of electric circuits.
A circuit is set up such that the light bulb glows. If the terminals of the electric cell are reversed, will the bulb continue to glow? Explain your answer.
