In an electron gun

PHYSICS · Single correct · AP · Physics 2: Algebra-based · Electric Force Field and Potential · Electric Force Field and Potential

Problem

In an electron gun, electrons are accelerated through a potential difference of

V

volt. Taking electronic charge and mass to be respectively

e

and

m

, the maximum velocity attained by them is: (a)

\frac{2eV}{m}

(b)

\sqrt{\frac{2eV}{m}}

(c)

2m/eV

(d)

(V^2/2em)