Question: a parallel plate capacitor is formed with two plates separated...
Question details
A parallel plate capacitor is formed with two plates separated
by 5.00 mm as shown in Figure 1. Each plate is a 10.0 cm X 10.0 cm
square. We do not know the charge on the plates. An electron beam
is shot in from one edge of the capacitor. It enters the capacitor
very close (call it 0 mm) from the top plate and travelling
parallel to the plates. The electrons in the beam are moving at
1.50 × 107 m/s as they enter the capacitor (this may seem extremely
fast, but it is easy to make electrons go this fast). They exit the
other side of the capacitor just missing the edge of the bottom
plate.
(a) Which plate is the positive one? Explain.
(b) From the information given determine the acceleration of
the electrons
(c) Find the strength of the electric field inside the
capacitor.
(d) Determine how much charge is on each plate of the
capacitor.
Solution by an expert tutor
