Question

4. What is the role of a switch in a circuit? Will the bulb glow in the given set up? Explain your answer (3)​

Answer 1

Answer:

Switch completes the circuit which allow flow of electricity.

Yes, the bulb would glow in the given circuit because the circuit is closed or complete.

Answer 2

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What is the role of a switch in a circuit? Will the bulb glow in the given set up? Explain your answer (3)​

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A switch is a simple device that either breaks the circuit or completes it. If the switch is “ON” then the current flows through the circuit and when the switch is “OFF” then the current cannot flow through the circuit. Electrical appliances such as table fans, electric lamps, washing machines, juicers and mixers, radio, TV, mobiles, torch and electric toys have in built switches.

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