AQA A-Level Physics/List of formulas

De Broglie wavelength: $\frac{h}{m v}$ where h = Planck's Constant

ELECTRICITY

$I = \frac{V}{R}$

$V = \frac{W}{Q}$

$I = \frac{Q}{t}$

Resistors in series

$R = R_{1} + R_{2} + R_{3} + . . . . . . .$

Resistors in parallel

$\frac{1}{R} = \frac{1}{R_{1}} + \frac{1}{R_{2}} + \frac{1}{R_{3}} + . . . . .$

Resistivity

$ρ = \frac{R A}{l}$

$P = I V = \frac{V^{2}}{R}$

Induced EMF

$ϵ = \frac{E}{Q}$

$ϵ = I (R + r)$

Alternating current

$I_{r m s} = \frac{I_{p e a k}}{\sqrt{2}}$

$V_{r m s} = \frac{V_{p e a k}}{\sqrt{2}}$ Template:BookCat

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