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3 volts

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Q: Potential difference between -1 and 2 volts?
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What is the unit of potential difference between two points?

The unit of potential difference in a circuit is the volt.Electrical charge is measured in coulombs (1 coulomb = 6.241x1018 e, electron charges) and a volt is equal to 1 newton per coulomb at a distance of 1 meter.


What is the unit of potential difference?

The unit for electric potential difference is the volt (V).


What is bigger 3.6v or 7.2v?

When looking at voltage numbers the higher the number the higher the voltage. In regards to which voltage is higher the 3.6v (volts) or the7.2v (volts), 7.2 is higher.


Why is potential difference measured in volts?

Potential difference is defined as follows: every coloumb of charge that passes through this difference will gain (or lose, depending on direction and signs) 1 joule of energy. This unit, joule/coloumb, is simply called the volt.


If the potential difference across a load is 60 volts and the resistance of the load is 10 ohms the current is amperes.?

It's not that simple. The basic formula is Volts / Ohms = Amps. For 30 Volts you'd get 0.5 Amps, for 60 Volts you'd get 1 Amp, for 120 Volts you'd get 2 Amps.


Why volt meter is always placed in parallel?

Because the quantity it measures is 'EMF' or 'potential difference', that is,the difference in potential between two points. There may be 1 or 1,000circuit components between the two points.


What is normal potential and what is the difference between standard and normal potential?

Normal potential is the the potential at 273o K, standard potential is the potential at 298o K, 101325 Pa and concentrations in 1 M.


What is the difference between GeV and MeV electron bolts?

1000 GeV means "gigaelectron volts" (1 billion, or 1,000,000,000 eV) MeV means "megaelectron volts" (1 million, or 1,000,000 eV)


Is a watt larger than a kilowatt?

A kilowatt equals 1000 watts. watts=volts x amps.


Is volt the SI unit for voltmeter?

No it is not. A volt is a joule divided by a coulomb, it is m2∙kg∙s−3∙A−1


How many electron volts for one volt?

The two are not compatible units. An Electron Volt is the amount of charge one electron gains or loses when it crosses an electrical potential difference of 1 volt.


What is the difference between cell potential and standard cell potential?

the standard cell potential is the cell potential at standard conditions (25C , 1 atm , and 1M ) but the cell potential is the cell potential of the cell under a real condition and we use nernst equation . i hope this is useful