일반물리학 2 — Magnetic Fields: Problem 63

63 An electron that has an instantaneous velocity of \(\vec{v} = (5.0 \times 10^6 \text{ m/s})\hat{i} + (3.0 \times 10^6 \text{ m/s})\hat{j}\) is moving through the uniform magnetic field \(\vec{B} = (0.030 \text{ T})\hat{i} - (0.15 \text{ T})\hat{j}\). (a) Find the force on the electron due to the magnetic field. (b) Repeat your calculation for a proton having the same velocity.