A solid non-conducting sphere of radius R carries a uniform charge density. At a radial distance r1 = R/4 the electric field has a magnitude E0. What is the magnitude of the electric field at a radial distance r2 = 2R?

A)

E0/4
B)

0
C)

E0/2
D)

E0
E)

2E0


D

Physics & Space Science

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An electron situated near another electron would feel

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If a = 60 cm, b = 80 cm, Q = ?6.0 nC, and q = 4.0 nC, what is the magnitude of the electric field at point P?



a.
35 N/C

b.
42 N/C

c.
52 N/C

d.
64 N/C

e.
104 N/C

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