EAS 110 midterm

welp

ohm’s law: I =

V/R

ohm’s law: V =

IR

ohm’s law: R

V/I

Kirchoff’s Voltage Law (KVL)

In a closed loop, the summation of the voltages equals zero

Kirchoff’s Current Law (KCL)

At a node, the summation of the current equals zero

Total Resistance in Parallel

1/R_eq = 1/R₁ + 1/R₂ + …

Total Resistance in Series

R = R₁ + R₂ + …

V_out =

(R₂/ R₁ + R₂)*V_in

FFT

fast fourier transform; can help you decompensate complicated signals into basic ones

• Transform an expansion of a periodic function f(x) in terms of an infinite sum of sines and cosines

• time domain —> frequency domain

DC

direct current; V = A

AC

alternating current; V = Acos(ധt) 

• ധ: period

• t: time

ohm’s law

Resistance (R) = low, then Current (I) = high; Current (I) = low, then Resistance (R) = high