Question

A uniform electric field $\overrightarrow{E}$ exists between the plates of a charged condenser. A charged particle enters the space between the plates and perpendicular to $\overrightarrow{E}$. The path of the particle between the plates is a :

• A. straight line
• B. hyperbola
• C. parabola
• D. circle

Answer 1

Answer: (C)

parabola

Answer 2

When charged particle enters perpendicularly in an electric field, it describes a parabolic path
$y = \frac{1}{2}\left(\frac{QE}{m}\right)\left(\frac{x}{4}\right)^{2}$
This is the equation of parabola.