Answer 4_9_8
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A positive charge of 6 nC attracts a negative charge of 5 nC from a distance of 4 mm. What is the work done? What does the sign mean?
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E
= 9 ´
109 ´
6 ´
10-9 ´
-5 ´
10-9
(P)
= - 6.75 ´
10-5 J (P) |
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4 ´10-3 |
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Work
is got out (P) |