> [!INFO] What's this? > This is (or will be) an annotated version of the formula book we're given in the exam. It will be the same formulas, but with links to relevant notes on each formula ## Electrical Current $ I = \frac{Q}{t} $ ![[Circuit Theory (1)#Current]] --- $ I = nAve \qquad J = \frac{I}{A} $ > [!WARNING] TODO > Above formula have not been covered yet ## Resistance $ R = \frac{V}{I} $ ![[Circuit Theory (2)#Ohm's Law]] ![[Circuit Theory (1)#Resistance]] --- $ R_s = R_1 + R_2 + R_3 $ ![[Circuit Theory (2)#Resistors in Series]] --- $ \frac{1}{R_p} = \frac{1}{R_1} + \frac{1}{R_2} + \frac{1}{R_3} \qquad R_p = \frac{R_1 \times R_2}{R_1 + R_2} $ ![[Circuit Theory (2)#Resistors in Parallel]] --- $ R = \frac{\rho \ell}{a} $ > [!WARNING] TODO > Above formula have not been covered yet ## Power & Energy $ P = V \times I \qquad P = I^2 \times R \qquad P = \frac{V^2}{R} $ ![[Circuit Theory (1)#Power]] --- $ W = V \times I \times t $ ![[Electricity & Electronics/Circuit Theory (1)#Energy]] ## Electrical Circuits $ V=E-Ir $ ![[Circuit Theory (3)#Terminal Voltage]] ***