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प्रश्न
Name the instrument which is used to measure the potential difference.
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उत्तर
Voltmeter
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संबंधित प्रश्न
State two causes of energy loss in a transformer.
The values of current (I) flowing through a given resistor of resistance (R), for the corresponding values of potential difference (V) across the resistor are as given below:
| V (volts) | 0.5 | 1.0 | 1.5 | 2.0 | 2.5 | 3.0 | 4.0 | 5.0 |
| I (amperes) | 0.1 | 0.2 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1.0 |
Plot a graph between current (I) and potential difference (V) and determine the resistance (R) of the resistor.
How much work is done when one coulomb charge moves against a potential difference of 1 volt?
What is the SI unit of potential difference?
Define one coulomb charge.
Potential difference is measured in _________ by using a ___________ placed in ___________ across a component.
What is the potential difference between the terminals of a battery if 250 joules of work is required to transfer 20 coulombs of charge from one terminal of battery to the other?
Calculate the power used in the 2 Ω resistor in each of the following circuits: a 6 V battery in series with 1 Ω and 2 Ω resistors.
If the potential difference between the ends of a fixed resistor is halved, the electric power will become:
Twenty-seven drops of same size are charged at 220 V each. They combine to form a bigger drop. Calculate the potential of the bigger drop.
