AQA A-Level Physics/List of formulas

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De Broglie wavelength: \frac{h}{mv} 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


\rho=\frac{RA}{l}


P = IV = \frac{V^2}{R}


Induced EMF


\epsilon=\frac{E}{Q}


\epsilon=I(R+r)


Alternating current


I_{rms}= \frac{I_{peak}}{\sqrt2}


V_{rms}= \frac{V_{peak}}{\sqrt2}