Multiple Choice
Charge of uniform density (40 pC/m2) is distributed on a spherical surface (radius = 1.0 cm) , and a second concentric spherical surface (radius = 3.0 cm) carries a uniform charge density of 60 pC/m2.What is the magnitude of the electric field at a point 4.0 cm from the centre of the two surfaces?
A) 3.8 N/C
B) 4.1 N/C
C) 3.5 N/C
D) 3.2 N/C
E) 0.28 N/C
Correct Answer:

Verified
Correct Answer:
Verified
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