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What is the approximate value of the Coulomb constant k in SI units?
A8.85 × 109 N m2 C–2
B9 × 10–9 N m2 C–2
C9 × 109 N m2 C–2
D6.67 × 109 N m2 C–2
Answer & Solution
Correct answer: C. 9 × 109 N m2 C–2
k = 1/(4πε0) works out to about 9 × 109 N m2 C–2.
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