Electromagnetism & Electronics
4 terms
Parallel Circuit
Electromagnetism & Electronics
Ω (Ohms)
An electrical circuit topology in which components are connected across common voltage nodes, offering multiple parallel paths for current.
1 / R_total = (1/R₁) + (1/R₂) + (1/R₃), V_total = V₁ = V₂ = V₃
Paramagnetism
Electromagnetism & Electronics
Dimensionless (χ_m > 0)
A weak form of magnetism in which materials with unpaired electrons are weakly attracted into an external magnetic field.
χ_m = C / T (Curie's Law)
Power Factor
Electromagnetism & Electronics
Dimensionless (0 to 1)
The ratio of real power dissipated by an AC circuit to the apparent power delivered by the supply.
PF = cos φ = P_real / S_apparent = R / Z
Poynting Vector
Electromagnetism & Electronics
W/m² (Watts per square meter)
A vector representing the directional energy flux density (power per unit area) transported by an electromagnetic field.
S = (1 / μ₀) (E × B)