Basic Maths and Units and DimensionsHard
Question
Three charges q, 2q and 4q are placed on straight line at equal distances, then ratio of the force exerted by q on 4q and the net force on 2q is :-
Options
A.1 : 6
B.6 : 1
C.1 : 2
D.2 : 1
Solution
Force on 4q due to q, F1 =
net force on 2q F2 = F4q - Fq
=
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