Electrostatics (HSC SSCE Physics): Flashcards

$\vec{E} = \frac{\vec{F}}{q}$ (force per unit charge)

N C⁻¹ (newtons per coulomb)

$1.6 \times 10^{-19}$ C

$\vec{F} = Eq$

$\vec{a} = \frac{Eq}{m}$

Inverse square law: $E \propto \frac{1}{r^2}$

$9.0 \times 10^9$ N m² C⁻²

$E = \frac{1}{4\pi\varepsilon_0}\frac{q}{r^2}$

$F = \frac{1}{4\pi\varepsilon_0}\frac{q_1 q_2}{r^2}$

Forces are equal in magnitude and opposite in direction