الفيزياء العامة الجزء الثاني#موقع الفيزياء.كوم

Lectures in General Physics
3.16) Charges +q and -2q are fixed a
distance d apart as shown in figure
3.22. Find the electric field at
points A, B, and C.
A
d
+q
d
2
B
d
2
-2q
d
C
released from rest at the surface of
the negatively charged plate and
strikes the surface of the opposite
plate, 2.0cm away, in a time
1.5×10 -8 s. (a) What is the speed of
the electron as it strikes the second
plate? (b) What is the magnitude of
the electric field E?
Figure 3.22
3.17) A uniform electric field exists
in a region between two oppositely
charged plates. An electron is
Dr. Hazem Falah Sakeek