All Problems

Constant Magnetic Field, Magnetics

Problem 3.250

Two protons move parallel to each other with an equal velocity \(v=300 \mathrm{~km} / \mathrm{s}\). Find the ratio of forces of magnetic and electrical interaction of the protons.

Reveal Answer
Fm/Fe=μ0ε0v2=(v/c)2=1.00⋅10−6F_{\mathrm{m}} / F_{\mathrm{e}}=\mu_{0} \varepsilon_{0} v^{2}=(v / c)^{2}=1.00 \cdot 10^{-6}
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