Physics > 2014 > 42
WASSCE
Two identical charges situated 20cm apart in vacuum repel each other with a force of 1.0N. Calculate the value of each charges. [(4πεo)-1 = 9 x 109 N m2C-2]
A.
2.1µC
B.
3.6µC
C.
4.0µC
D.
4.4µC
Answer: A
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