Physics

Problem

Two streams of protons move parallel to each other with velocity

v = 3 \times 10^{5}\,\text{m/s}

. They are separated by distance

d

. The ratio of the electric repulsive force to the magnetic attractive force between two protons is approximately

\frac{c^{2}}{v^{2}}

. Calculate the numerical value of this ratio. (Take speed of light

c = 3 \times 10^{8}\,\text{m/s}