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
B
Physics & Space Science
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