A large flat metal surface has a uniform charge density . An electron of mass m and charge e leaves the surface at point A with speed u and returns to it at point B. Neglect gravity. The maximum value of AB is
Answers
Answered by
1
ANSWER
Electric field due to one surface of the large metal plate,
E=
2ε
0
σ
Range AB
max
=
a
U
2
a=
m
ρE
=
2ε
0
m
ρσ
2ε
0
m
ρσ
U
2
=
ρσ
Answered by
0
Answer:
Explanation:
When the electron is projected, We know that for maximum range, angle should be 45
Taking the horisontal velocity,
s = u² /a = u² 2Eom/e¬
Similar questions