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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.
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संबंधित प्रश्न
Draw circuit symbols for
A closed switch
What is open circuit?
In the circuit diagram below, 10 units of electric charge move past point x every second What is the current in the circuit ______.
Draw the circuit diagram for the following series connection
______ is a kind of fish which is able to produce an electric current.
In a circuit, if the key is in open (off) condition, then electricity will not flow.
In an electric circuit, the current starts from ______.
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?
How is Joule's law effect useful in electric circuits where fuse is used as a safety device?
