A. 4πx10-9 WbA-1m-1
B. 4πx10-7 WbA-1m-1
C. 4πx10-10 WbA-1m-1
D. 4πx10-8 WbA-1m-1
Correct Answer: 4πx10-7 WbA-1m-1 ✔
Last Updated: January 20, 2021
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