**Problem 3: A proton moving at right angle in a magnetic field of 0.1 T experiences a force of 2 * 10**^{-12} N. What is the speed of proton?

**Solution**

Given data B = 0.1 T e = 1.6 * 10^{-19} C θ = 90°

F = 2 * 10^{-12} N

Required v =?

Formula

Put the values

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