charged particle starts from rest near one plate of a charged capacitor, and travels in the − direction, passing through a tiny hole in the capacitor. At the instant shown in the diagram, the particle is at the origin. At this moment, the magnetic field at location ⟨−0.004, −0.003, 0⟩ m, due to the moving particle, is ⟨0, 0, 1.9 × 10−14⟩ T. The angle is 37◦) Is the particle a proton or an electron? Explain briefly how you can tell.
(b) Draw + and − charges indicating which plate of the capacitor is positive and which plate is negative.
(c) What is the speed of the particle? Show all steps in your work.
(d) What is the potential difference − ? Show your work. If you could not do a previous part of the problem,
invent a symbol for the quantity you need and use that instead of a number.