Just looking to see if anyone has a big cheatsheet of electronic equations they are willing to share.
Sure, ohm's law is easy enough, but there are so many more equations out there, and I can only remember so many of them.
V=IR
V/R = I
V/I = R
P = IV
P = I^2*R
P=V^2/R
PV=nRT
Period = 1/Frequency
What else do you need?
ic approx equal to ie for bipolar junction transistor (under usual operating conditions).
ic approx equal to beta*ib for bipolar junction transistor.
ic is collector current, ib is base current, ie is emitter current
I see you use "V", where I learned "E" for voltage.
As for what else I need..... I was looking for a whole laundry list beyond ohms law.
transistors, mosfets, capacitors, inductors.....
Just a cheatsheet with the various equations. I've stumbled upon a few that were well laid out and easy to find what you were looking for, some just covering ohms law. I find it somewhat handy when I'm tired from dealing with the crisis of the day and just need to double check myself.
Welcome tinman13kup.
I learned "E" for voltage
Electromotive Force?
Did you Google:
electronic formulas cheat sheet
ideal capacitor: C dV = I dt
ideal inductor: L dI = V dt
resonant LC circuit: f = 1/(2 pi) sqrt (1 / LC)
conductor in a magnetic field: F = B l I, V = B l v
RC time constant tc = RC
RL time constant tc = L/R
resistance of wire R = rho l / A, rho = bulk resistivity, l = length, A = cross section area
ideal diode: I proportional to e^(qV/kT), q = charge on electron, k = Boltzman's constant, T in kelvin,
or at room temp: I roughly proportional to e^(39 V), doubles every 18mV or so, x10 every 59mV
You can derive:
energy in capacitor: E = 0.5 C V^2
energy in inductor: E = 0.5 L I^2
characteristic impedance of transmission line = sqrt (L/C) - where L and C are inductance and capacitance
per unit length.
Twinkle Twinkle Little Star Power Equals I square R.
Tom... 
CrossRoads:
PV=nRT
You sneaked in the ideal gas law! Don't think I've needed that for electronics yet
MarkT:
You sneaked in the ideal gas law! Don't think I've needed that for electronics yet
Might be useful for calculation of how much magic smoke was released
TomGeorge:
Twinkle Twinkle Little Star Power Equals I square R.Tom...
NOOOOO!!! Make it stop!!! The voices in my head!!
Tom too
And JUST when I thought this was getting really boring, I found the holiday shopping solution for two of my Grandchildren: HERE
