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प्रश्न
______ is the device used to close or open an electric circuit.
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उत्तर
Key or Switch is the device used to close or open an electric circuit.
APPEARS IN
संबंधित प्रश्न
Draw circuit symbols for
an open switch
Draw circuit symbols for
A closed switch
Explain the following:
Closed circuit
Nowadays MCBs are used in homes, for stop the current in the circuit which suddenly increases.
Rahul wants to make an electric circuit. He has a bulb, two wires, a safety pin, and a piece of copper. He does not have any electric cell or battery. Suddenly he gets some idea. He uses lemon instead of a battery and makes a circuit. Will the bulb glow?
Three bulbs are connected end to end from the battery. This connection is called _______.
State whether true or false. If false, correct the statement.
Ammeter is connected in parallel in any electric circuit.
Explain about domestic electric circuits. (circuit diagram not required)
Choose the statement which is not correct in the case of an electric fuse.
Observe the circuit given:
1. Would any of the bulbs glow when the switch is in the ‘OFF’ position?
2. What will be the order in which the bulbs A, B, and C will glow when the switch is moved to the ‘ON’ position?
