Electromagnetism & Electronics
4 terms
Capacitance
Electromagnetism & Electronics
F (Farads = C/V)
The ratio of the electric charge stored on a conductor or capacitor plate to the potential difference across it.
C = q / V = ε A / d
Capacitive Reactance
Electromagnetism & Electronics
Ω (Ohms)
The opposition offered by a capacitor to alternating current flow, inversely proportional to AC frequency and capacitance.
X_C = 1 / (2π f C) = 1 / (ω C)
Coulomb's Law
Electromagnetism & Electronics
N (Newtons)
An inverse-square law stating that the electrostatic force between two stationary point charges is directly proportional to the product of their charges and inversely proportional to the square of their…
F = k_e |q₁ q₂| / r² = (1 / (4π ε₀)) |q₁ q₂| / r²
Cyclotron
Electromagnetism & Electronics
Hz (Frequency), J or MeV (Kinetic Energy)
A particle accelerator in which charged particles orbit spirally in a constant magnetic field while high-frequency AC electric fields accelerate them twice per turn.
f_c = (q B) / (2π m), KE_max = (q² B² R²) / (2 m)