An electron experiences a magnetic force of while moving perpendicular to a uniform…

PHYSICS · Subjective · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

An electron experiences a magnetic force of

8.0\times10^{-14}\,\text{N}

while moving perpendicular to a

250\,\text{mT}

uniform magnetic field. Determine the speed of the electron. Provide your answer in meters per second.