Electronics/Formulas

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Electronics | Foreword | Basic Electronics | Complex Electronics | Electricity | Machines | History of Electronics | Appendix | edit


Contents

[edit] Formula

[edit] Key

Electric potential = V, SI unit volt (V)
Current = I, SI unit ampere (A)
Resistance = R, SI unit ohm (Ω)
Work = W, SI unit joule (J)
Power = P, SI unit Watt (W)
Force = F, SI unit newton(N)
Distance = s, SI unit meter (m)

[edit] Ohm's Law

V = I \cdot R

[edit] Solving for Current


I = \frac{V}{R}


[edit] Solving for Resistance


R = \frac{V}{I}



[edit] Solving for Voltage


V = I \cdot R


[edit] Power and Work


[edit] Solving for Power


P = V \cdot I  or  P = I^2 \cdot R  or  P = \frac{V^2}{R}


[edit] Solving For Work


W = P \cdot t
W = F \cdot s
W = F \cdot s \cdot \cos \theta