Electrons of charge and mass that have been accelerated through a potential difference,

PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

Electrons of charge

e

and mass

m

that have been accelerated through a potential difference,

V

, will have a momentum given by which of the following expressions? (1)

p = mV

(2)

p = \frac{1}{\sqrt{2meV}}

(3)

p = \sqrt{2meV}

(4)

p = 2meV