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प्रश्न
The device used for measuring potential difference is
पर्याय
Potentiometer
Ammeter
Galvanometer
Voltmeter
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उत्तर
Voltmeter
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संबंधित प्रश्न
How much energy is given to each coulomb of charge passing through a 6 V battery?
You have three resistors of values 2Ω, 3Ω and 5Ω. How will you join them so that the total resistance is more than 7Ω?
1) Draw a diagram for the arrangement
2) Calculate the equivalent resistance.
What do the letters p.d. stand for?
What is Ohm's law? Explain how it is used to define the unit of resistance.
Keeping the potential difference constant, the resistance of a circuit is doubled. The current will become:
A current of 200 mA flows through a 4 kΩ resistor. What is the p.d. across the resistor?
For the circuit shown in the diagram below:
What is the value of:
(i) current through 6 Ω resistor?
(ii) potential difference across 12 Ω resistor?
In the circuit shown below:
The potential difference across the 3 Ω resistor is:
Explain the analogy between the flow of charge (or current) in a conductor under a potential difference with the free fall of a body under gravity.
Write an expression for the electrical power spent in flow of current through a conductor in terms of resistance and potential difference.
