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- PHY102 Physics II © Dr.Cem Özdoğan
- The SI unit for potential is the joule per coulomb. This combination is called the volt (abbreviated V).
- This unit of volt allows us to adopt a more conventional unit for the electric field, E, which is expressed in newtons per coulomb.
- 24-3 Electric Potential: Units
- We can now define an energy unit that is a convenient one for energy measurements in the atomic/subatomic domain:
- One electron-volt (eV) is the energy equal to the work required to move a single elementary charge e, such as that of the electron or the proton, through a potential difference of exactly one volt.
- The magnitude of this work is qΔV, and