Electric letter symbols are used in electrical engineering and physics to represent various physical quantities, components, and concepts. Here is a list of common electric letter symbols and their meanings:
- I: Electric Current. Measured in amperes (A).
- V: Voltage or Electric Potential Difference. Measured in volts (V).
- R: Resistance. Measured in ohms (Ω).
- C: Capacitance. Measured in farads (F).
- L: Inductance. Measured in henrys (H).
- P: Power. Measured in watts (W).
- Q: Electric Charge. Measured in coulombs (C).
- E: Electromotive Force (EMF) or Electric Field. EMF measured in volts (V); Electric Field measured in volts per meter (V/m).
- B: Magnetic Flux Density. Measured in teslas (T).
- Z: Impedance. Measured in ohms (Ω).
- Y: Admittance. The reciprocal of impedance, measured in siemens (S).
- S: Electric Conductance. Measured in siemens (S).
- G: Conductance, often used interchangeably with S. Measured in siemens (S).
- F: Frequency. Measured in hertz (Hz).
- W: Energy or Work. Measured in joules (J).
- H: Magnetic Field Strength. Measured in amperes per meter (A/m).
- D: Electric Displacement Field. Measured in coulombs per square meter (C/m²).
- K: Dielectric Constant or Relative Permittivity of a material.
- T: Period of time or Time constant in circuits. Measured in seconds (s).
- Φ (Phi): Magnetic Flux. Measured in webers (Wb).
These symbols form the basis of electrical and electronic formulae and equations, allowing engineers and scientists to communicate complex information efficiently and accurately.