SACE Stage 2 Physics — Topic 2: Electromagnetism

Charged Particle Deflection

Explore how a charged particle moves in a uniform electric field between parallel plates. In Deflection mode the particle enters perpendicular to \(\mathbf{E}\) and follows a parabolic path — just like projectile motion. In Acceleration mode it enters parallel to \(\mathbf{E}\) and speeds up or slows down uniformly.

Controls

Particle

Charge sign

Charge magnitude \(|q|\) (C)

× 10

Mantissa 1.00–9.99, exponent −20 to −15

Mass \(m\) (kg)

× 10

Mantissa 1.00–9.99, exponent −31 to −25

Plate voltage \(V\)

Plate separation \(d\)

Entry speed \(v_0\)

× 10⁷ m/s

Field strength \(E = V/d\) —

Force \(F = qE\) —

Acceleration \(a = F/m\) —

Deflection \(y\) at exit —

Range \(x\) (impact distance from left plate edge) —

Exit speed \(v\) —

Entry KE \(\tfrac{1}{2}mv_0^2\) — —

Exit KE — —