Two charges –q each are fixed separated by distance 2d. A third charge q of mass m placed at the mid-point is displaced slightly by x (x<
T=[8π3ɛo md3/q2]1/2
Two charges –q each are fixed separated by distance 2d. A third charge q of mass m placed at the mid-point is displaced slightly by x (x<
T=[8π3ɛo md3/q2]1/2
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1 Answer
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This is a Long Answer Type Questions as classified in NCERT Exemplar
Explanation- two charge -q at A and B
AB=AO+OB=2d and x= small distance perpendicular to O
When x
F=qq/4 where AP=BP=r but horizontal components gets cancel out each other and vertical components gets add .
If angle APO=O the net force on q along PO is F’= 2Fcos
= =
When x
K= ,F
Force on charge q is proportional to its displacement from the center O and it is directed towards O
Hence we can say that motion of charge would be simple harmonic
Where w= and T=
T= 2 = 2 = [8π3?o md3/q2]1/2
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