1.

If two-point charges 'q1,' 'q2' are separated by a distance 'r' in a vacuum, the magnitude of the force (F) between them is given by F = q1q2 / (4πεor2). Here where εo = _________ × 10-­12 C2N­-1m­2.

A. 1.67
B. 9.11
C. 8.85
D. 5.32
Answer» D. 5.32


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