Electric Circuit
Electric Circuit: Overview
This topic covers concepts, such as, Torch, Electric Circuit, Electric Current, Fusing of an Electric Bulb & Working of Torch etc.
Important Questions on Electric Circuit
Define an electric circuit. Draw a simple circuit.
A circuit with a _____(fused/filament) bulb acts as an incomplete circuit.
An arrangement in which a bulb and a cell connected to a switch is an example of circuit.
When the circuit is open the current will
Name the instrument used for measuring current.
Electric current flows in a _____ circuit. (Option: open, closed)
If a circuit is open, a bulb connected to it will not glow.
In an open circuit, the electric current passes through an unbroken path.
An electric circuit is the bulb through which electric current flows.
If a circuit is closed, a bulb connected to it will glow.
The path through which an electric current flow is called
An electric bulb with a broken filament is _____ and will not glow in an electric circuit.
Fill in the blank by choosing the correct words from the help box.
(careful, safety rules, carelessness, prompt, proper, reduces, leaks)
All electrical gadgets at home should be checked for _____ regularly.
Draw and name the parts of an electric torch.
What is an electric circuit? What are the things required to make an electric circuit?
Draw a well-labelled diagram of an electric torch. Explain its construction and working.
Draw the symbol for cell, open and closed circuits, battery and bulb.
| Column A | Column B |
| 1. Closed circuit | a. Supplies electricity |
| 2. Ray fish | b. Electricity flow easily |
| 3. Graphite | c. Helps in working of electrical appliances |
| 4. Power house | d. Living organism having electricity |
| 5. Electricity | e. Is a good conductor |
