1.
An electron moving with a velocity V⃗1=2i^ m/s\vec{V}_1 = 2\hat{i}\,\text{m/s} at a point in a magnetic field experiences a force F⃗1=−2j^ N\vec{F}_1 = -2\hat{j}\,\text{N}. If the electron is moving with a velocity V⃗2=2j^ m/s\vec{V}_2 = 2\hat{j}\,\text{m/s} at the same point, it experiences a force F⃗2=+2i^ N\vec{F}_2 = +2\hat{i}\,\text{N}. The force the electron would experience if it were moving with a velocity V⃗3=2k^ m/s\vec{V}_3 = 2\hat{k}\,\text{m/s} at the same point is