AQA A-Level Physics/List of formulas

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

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

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