Electromagnetism & Electronics
4 terms
RC Circuit & Time Constant
Electromagnetism & Electronics
s (Seconds)
An electrical circuit composed of resistors and capacitors driven by a voltage source, characterized by its exponential charging and discharging time constant τ.
V(t) = V₀ e^(-t / τ), τ = R C
RL Circuit
Electromagnetism & Electronics
s (Seconds)
An electrical circuit containing resistors and inductors, characterized by an exponential delay in current growth and decay governed by time constant τ = L/R.
I(t) = (V₀ / R) (1 - e^(-t / τ)), τ = L / R
RLC Circuit & Resonance
Electromagnetism & Electronics
Hz (Frequency), Ω (Impedance)
An electrical circuit containing a resistor, inductor, and capacitor whose total impedance reaches a minimum at the resonant frequency.
f_res = 1 / (2π √(L C)), Z = √(R² + (X_L - X_C)²)
RMS Current
Electromagnetism & Electronics
A (Amperes)
The Root-Mean-Square value of an alternating current (AC), representing the equivalent direct current (DC) that delivers equal average heating power to a resistor.
I_rms = I_peak / √2 ≈ 0.707 I_peak