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An electronvolt is the amount of energy gained or lost by a single electron when it moves through an electric potential difference of one volt.Hence, it has a value of one volt, which is 1 J/C, multiplied by the elementary charge e = 1.602 176 634 × 10 −19 C. [2]
3.1 One point charge q in the presence of another point charge Q. ... 1 eV = 1.602×10 −19 Joules. ... Some elements in a circuit can convert energy from one form ...
It can also be expressed as amperes times ohms (current times resistance, Ohm's law), webers per second (magnetic flux per time), watts per ampere (power per current), or joules per coulomb (energy per charge), which is also equivalent to electronvolts per elementary charge:
In addition to the AC power contacts and protective earth, there is a single control pilot communication pin in the Type 3A interface, which verifies the continuity of the protective earth circuit. The maximum rated current and voltage are 16 A and 200–250 V, respectively. [5]: 57 This is defined as Mode 2 charging under IEC 61851.
Certain specialized circuits can also be considered power converters, such as the flyback transformer subsystem powering a CRT, generating high voltage at approximately 15 kHz. Consumer electronics usually include an AC adapter (a type of power supply ) to convert mains-voltage AC current to low-voltage DC suitable for consumption by microchips.
Photon energy is often measured in electronvolts. One electronvolt (eV) is exactly 1.602 176 634 × 10 −19 J [3] or, using the atto prefix, 0.160 217 6634 aJ, in the SI system. To find the photon energy in electronvolt using the wavelength in micrometres, the equation is approximately
From left: IEC Type 1/SAE J1772 inlet; Tesla NACS outlet; IEC Type 2 connector outlet IEC 62196 Plugs, socket-outlets, vehicle connectors and vehicle inlets – Conductive charging of electric vehicles is a series of international standards that define requirements and tests for plugs, socket-outlets, vehicle connectors and vehicle inlets for conductive charging of electric vehicles and is ...
A simple voltage dropper can be used to reduce the voltage for low-power devices; if more than 12V is required, or for high-powered devices, a switched-mode power supply is used. The output will usually be DC in the range 1.5–24 V. Power supplies that output either 100–120 V AC or 210–240 V AC are available; they are called inverters ...