Motion in Crossed Electric and Magnetic Fields

Question

A charged particle with an initial velocity of $$\vec{v} = v_0 \hat{i}$$ enters a region with uniform electric and magnetic fields given by $$\vec{E} = E_0 \hat{j}$$ and $$\vec{B} = B_0 \hat{k}$$. Which condition ensures that the particle's motion in the z-direction remains unchanged?

Accepted Answer

Under all conditions, since $$F_z = 0$$

Answer

Only when $$v_0 = 0$$

Answer

Only when the particle has zero charge

Answer

Only when $$E_0 = v_0 B_0$$

Motion in Crossed Electric and Magnetic Fields

Question Leaderboard