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प्रश्न
What is meant by ‘MCB’? Which part of the domestic electric circuit does it replace?
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उत्तर
‘MCB’ stands for ‘miniature circuit breaker’. This is a device that automatically ‘switches off the mains supply if the current drawn Exceeds the prescribed upper safe limit. It can be ‘reset’ with the help of a flip-over switch. It protects the entire circuit and appliances against short circuiting, etc.
संबंधित प्रश्न
Name the wire in a household electrical circuit to which the switch is connected
What is the purpose of a switch in a circuit?
It is dangerous to connect the switch in the neutral wire. Explain your answer.
A switch must be connected in the ______.
What is a switch? State its function in an electric circuit.
What are ‘dual switches’? Mention their one main use.
Why should switches always be connected to the live wire? Give one precaution that should be taken while handling switches.
What is the purpose of using an electric switch? Name some electrical gadgets that have switches built into them.
Would the bulb glow after completing the circuit shown in Figure if instead of a safety pin we use an eraser?
Why is the switch put in the live wire?
