A proton with an initial velocity of 3.9 106 m/s enters aparallel-plate capacitor at an angle of 46° through a small hole inthe bottom plate as shown in the figure below. If the plates areseparated by a distance
d = 2.1 cm,
what is the magnitude of the minimum electric field to prevent theproton from hitting the top plate?
___ N/C
Compare your answer with the results obtained if the proton wasreplaced with an electron and choose an answer:
A. The magnitude of the electric field needed for a proton islarger than what is needed for an electron.
B. The magnitude of the electric field needed for a proton issmaller than what is needed for an electron.Ă‚Â Ă‚Â Ă‚Â
C. The magnitude of the electric field needed for a proton isthe same as what is needed for an electron.
