Draw the symbols of the following circuit components. (i) electric cell (ii) switch in off position (iii) electric bulb (iv) battery

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Solution

Electric cell
Switch in off position
Electric bulb
Battery
Electric cell
It is a device that converts chemical energy into electrical energy. When connected to a circuit, it acts as a source of current.
Switch in off position
A switch in off position means that it has broken the circuit and does not allow the current to pass through. Due to this there is no flow of current in a circuit.
Electric bulb
It is a device that gives electric light. It has a wire filament that has been heated till it glows. In order to protect the filament from oxidation, it is contained in a glass bulb containing an inert gas.
Battery
It is a combination of one or more cells whose chemical reaction creates the flow of electrons to give current in a circuit.

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Figure

Draw in your notebook the symbols to represent the following components of electrical circuits: connecting wires, switch in the ‘OFF’ position, bulb, cell, switch in the ‘ON’ position, and battery.

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Electric cell
Switch in off position
Electric bulb
Battery