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प्रश्न
______ is the device used to close or open an electric circuit.
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उत्तर
Positive is the device used to close or open an electric circuit.
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संबंधित प्रश्न
Draw circuit symbols for
A closed switch
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.
Two tungsten bulbs of power 50 W and 60 W work on 220 V potential difference. If they are connected in parallel, how much current will flow in the main conductor?
The following figure shows the symbols for components used in the accompanying electrical circuit. Place them at proper places and complete the circuit.
Which law can you prove with the help of above circuit?
Explain the following:
Open circuit
Find the odd one out and give its explanation.
In the circuit shown, which switches (L,M or N) must be closed to light up the bulb?
Three bulbs are connected end to end from the battery. This connection is called _______.
Assertion: People struck by lightning receive a severe electrical shock.
Reason: Lightning carries very high voltage.
