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प्रश्न
______ is the device used to close or open an electric circuit.
उत्तर
Key or Switch is the device used to close or open an electric circuit.
APPEARS IN
संबंधित प्रश्न
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?
Tell the odd one out. Give proper explanation.
What do you understand by the closed electric circuit
______ is the device used to close or open an electric circuit.
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 _______.
What is the role of the earth wire in domestic circuits?
In the following circuits (Figure), heat produced in the resistor or combination of resistors connected to a 12 V battery will be
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| (i) | (ii) | (iii) |
In the above circuit, if the current reading in the ammeter A is 2A, what would be the value of R1?
