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Olympiad workbook

Exam: Olympiad workbook
Subject: NSEP
Chapter: Electrostatics

Olympiad workbook · NSEP · Electrostatics

Two charges -q and -q are placed at points (0, d) and (0,-d) . A...

Two charges

-q

and

-q

are placed at points

(0, d)

and

(0,-d)

. A charge

+q

, free to move along

X

axis, will oscillate with a force proportional to

Options

A $\frac{1}{\mathrm{x}^2+\mathrm{d}^2}$
B $\frac{1}{x^2}$
C\frac{\mathrm{x}}{ $\left(\mathrm{d}^2+\mathrm{x}^2\right)^{\frac{3}{2}}}$
D $\frac{1}{\sqrt{\mathrm{x}^2+\mathrm{d}^2}}$

Correct answer

C. \frac{\mathrm{x}}{ $\left(\mathrm{d}^2+\mathrm{x}^2\right)^{\frac{3}{2}}}$

Step-by-step solution

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