A point charge travels due east with speed

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

Problem

+5.0\,\mu\text{C}

point charge travels due east with speed

4.0\times10^6\,\text{m/s}

. At the same instant, a

-2.0\,\mu\text{C}

test charge is located

0.030\,\text{m}

due north of the source charge and is moving due north with speed

2.0\times10^6\,\text{m/s}

. Using

\mu_0 = 4\pi\times10^{-7}\,\text{T}\cdot\text{m/A}

, calculate the magnitude of the magnetic force acting on the test charge.