A region contains a uniform electric field of magnitude and a uniform magnetic field…

PHYSICS · Subjective · AP · Physics 2: Algebra-based · Magnetism and Electromagnetism · Magnetism and Electromagnetism

Problem

A region contains a uniform electric field of magnitude

2.5\times10^{3}\,\text{N}\!\cdot\!\text{C}^{-1}

and a uniform magnetic field of magnitude

0.040\,\text{T}

, with the two fields perpendicular to each other. Calculate the speed that a singly ionized potassium ion (

q=+1.6\times10^{-19}\,\text{C}

) must have to move straight through the region without deflection.