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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 a schematic diagram of a circuit consisting of a battery of three cells of 2 V each, a 5 Ω resistor, an 8 Ω resistor, and a 12 Ω resistor, and a plug key, all connected in series.
What do the following symbols mean in circuit diagrams?
Draw the labelled diagram of an electric circuit comprising of a cell, a resistance, an ammeter, a voltmeter and a closed switch (or closed plug key). Which of the two has a large resistance : an ammeter or a voltmeter?
A battery is to be formed by joining 3 dry cells with connecting wires. Show how will you connect the wires by drawing a diagram.
What is open circuit?
What is the use of earthing wire?
Draw the circuit diagram for the series connection.
The rate of flow of electric charges in a circuit is called ______.
In which of the following circuits A, B and C given in the following figure, the cell will be used up very rapidly?
