The diagram depicts v⃗, E⃗ and B⃗, which are mutually perpendicular. If the direction of E⃗ is…

The diagram depicts $\vec{v}$, $\vec{E}$ and $\vec{B}$, which are mutually perpendicular. If the direction of $\vec{E}$ is indicated with $\hat{j}$ and the direction of $\vec{B}$ is indicated with $\hat{k}$, then the direction of $\vec{v}$ is indicated as ....... The force value in each case is stated. State the value of $E$ and $B$ as equal to zero or not equal to zero in each case. The value of resultant $F$ may be zero (if $\theta = 0^\circ$ or $180^\circ$) if $B \neq 0$ and $E$ ...... (choose $E = 0$ OR $E \neq 0$)