a A. Tick the correct option. 1. In a circuit diagram the components of the circuit are represented by a. lines b. circles c. standard pictures d. standard symbols 2. The device used to prevent the excess flow of current in the circuit is b. bulb c. tube light d. coil 3. When an electric current flows through a wire, it a. cools down b. boils c. behaves like a magnet d. none of these a. fuse 4. The glowing of bulb is due to a. chemical effects of current b. heating effects of current c. magnetic effects of current d. none of these 5. A hammer, a gong, and a soft iron strip are all parts of a. an electric fuse b. an electric bell c. electric circuit d. an electromagnet.
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Explanation:
Electric cell is a necessary component of an electric circuit.
Tungsten.
Tungsten is used to make the filament of an electric bulb.
Electric iron box.
Electric iron box works on the principle of heating effect of electric current.
A piece of soft iron.
A piece of soft iron is used to make the core of an electromagnet.
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3 and 5
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