A small glass bead has been charged to 8.0 nC. What is the magnitude of the electric field 2.0 cm from the center of the bead? (k = 1/4πε0 = 8.99 × 109 N ∙ m2/C2)
A) 1.8 × 105 N/C
B) 3.6 × 103 N/C
C) 1.4 × 10-3 N/C
D) 3.6 × 10-6 N/C
Correct Answer:
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