1. Capacitance
Capacitance refers to the ability to accommodate electric fields. Any electrostatic field is composed of many capacitors. If there is an electrostatic field, there is a capacitor, and the capacitor is described by electrostatic field.
capacitance (or capacitance) is a physical quantity that shows the capacity of a capacitor to hold charge. Physically speaking, capacitance is a static charge storage medium, and the charge may exist forever, which is its characteristic.
marked as C .. Adopting the international system of units, the unit of capacitance is farad, marked as F.
2. Resistance
Resistance (usually represented by "R") is a physical quantity, which indicates the resistance of a conductor to current in physics. The greater the resistance of the conductor, the greater the resistance of the conductor to the current.
different conductors generally have different resistances, and resistance is a characteristic of the conductor itself. Resistance will lead to the change of electron flux. The smaller the resistance, the greater the electron flux, and vice versa. Superconductors have no resistance.
the unit of resistance is ohm (Ω) in the international system of units, which is abbreviated as Europe. The SI unit of conductance is Siemens (S). Resistance is also commonly used in units of kω and mω.
3. Inductance
A property of a conductor is measured by the ratio of the electromotive force or voltage induced in the conductor to the rate of change of the current that produces this voltage. A steady current produces a stable magnetic field, and a changing current (alternating current) or fluctuating direct current produces a changing magnetic field, which in turn induces electromotive force in a conductor in this magnetic field.
inductance symbol: l; Inductance units: Heng (h), Milli Heng (mH) and Micro Heng (μH).
Extended information
Classification of inductors:
1. Classification by inductor form: fixed inductor and variable inductor. ?
2. According to the nature of the magnetic conductor, it is classified as air-core coil, ferrite coil, iron core coil and copper core coil. ?
3. According to the working nature, it is classified as antenna coil, oscillating coil, choke coil, trap coil and deflection coil. ?
4. According to winding structure, it is classified as single-layer coil, multi-layer coil and honeycomb coil.
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