Figure shows tracks of three charged particles in a uniform electrostatic field. Give the signs of the three charges. Which particle has the highest charge to mass ratio?

Suppose that a particle is attracted towards the positive plate: what must the charge on it be?

Figure shows tracks of three charged particles in a uniform electrostatic field. Give the signs of the three charges. Which particle has the highest charge to mass ratio?

Suppose, two particles have identical curved trajectories. Which of the following are necessarily true?

Figure shows tracks of three charged particles in a uniform electrostatic field. Give the signs of the three charges. Which particle has the highest charge to mass ratio?

You are given the initial velocity $v$ of a beam particle and the length of the capacitor $l$. What other measurement would enable one to find $\raisebox{1ex}{$e$}\!\left/ \!\raisebox{-1ex}{$m$}\right.$?

Figure shows three different patterns of electric field lines. In each pattern, a proton is released from rest at point $P$ and then accelerated towards the point $Q$ by the electric field. Rank the patterns according to the linear momentum of the proton when it reaches $Q$, greatest first.