Electric charge, also called amount of electricity, is a physical quantity defined as the amount of charges passing through a cross-sectional area with a current of 1 A for 1 second. Charging is an SI unit measured in coulomb (C).
Capacitance is the ability a component has to store an electrical charge and is defined as the ratio of charge to voltage. Capacitance is measured in SI unit fare (F) which equals 1 coulomb per second.
Electrical voltage is measured in volts (V) and is defined as the voltage across an electrical one needed for the current 1A to generate 1W.
Electric current is measured in the SI unit ampere (A) and is defined as the amount of charge transported per unit of time.
Refers to the time in seconds during which the electric current generates a charge.
Electrical energy is defined as the mechanical work needed to move a charge. The energy is usually measured in the SI unit Joule (J) which is the same as wattsecond (Ws). When numbers with these units normally become very small, watt hours (Wh) and kilowatt hours (kWh) are often used.
| Charging via capacitance and voltage: |  |
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| Charging via current and time: |  |
| Charging via energy and voltage: |  |