A tiny particle carries a charge of 
What is the energy density in the electric field at a distance of 
From this charge? (ε0 = 8.85 × 10-12 C2/N ∙ m2,k = 1/4πε0 = 9.0 × 109 N ∙ m2/C2)
A) 0.050 mJ/m3
B) 0.20 mJ/m3
C) 0.81 mJ/m3
D) 3.2 mJ/m3
Correct Answer:
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