Author Question: A charge of 5.0 pC is distributed uniformly on a spherical surface (radius = 2.0 cm), and a second ... (Read 147 times)

fasfsadfdsfa · **on:** Jul 28, 2018

A charge of 5.0 pC is distributed uniformly on a spherical surface (radius = 2.0 cm), and a second charge of -2.0 pC is distributed uniformly on a concentric spherical surface (radius = 4.0 cm). Determine the magnitude of the electric field 3.0 cm from the center of the two surfaces.
a. 30 N/C
b. 50 N/C
c. 40 N/C
d. 20 N/C
e. 70 N/C

Question 2

A 5.0-nC point charge is embedded at the center of a nonconducting sphere (radius = 2.0 cm) which has a charge of -8.0 nC distributed uniformly throughout its volume. What is the magnitude of the electric field at a point that is 1.0 cm from the center of the sphere?
a. 1.8 105 N/C
b. 9.0 104 N/C
c. 3.6 105 N/C
d. 2.7 105 N/C
e. 7.2 105 N/C