EARTH SCIENCE
MAGNETISM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is the purpose of a switch in an electric circuit?
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to allow the circuit to be opened or closed
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to change the direction of the current
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to provide a push for the current
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to increase the electric power to the load
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Explanation:
Detailed explanation-1: -The function of switch in an electric circuit is to either make or break the electric circuit. A switch is used to turn current to an electrical appliance either on or off.
Detailed explanation-2: -A closed switch is one that provides a direct (low resistance) path for current to flow through.
Detailed explanation-3: -The circuit is called ‘closed’ when the current flows in the circuit, and when the current does not flow, it is called an ‘open circuit’. The switch or key helps to make or break the circuit, i.e. switches on or switches off the current. Was this answer helpful?
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