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Olympiad workbook

Exam: Olympiad workbook
Subject: NSEP
Chapter: Electrostatics

Olympiad workbook · NSEP · Electrostatics

A very small electric dipole of dipole moment p lies along the x...

A very small electric dipole of dipole moment

\vec{p}

lies along the

x

axis

(i \cdot e \vec{p}=p \hat{i})

in a non-uniform electric field

\vec{E}=\frac{c}{x} \hat{i}

(where c is a constant). The force on the dipole is

Options

A $\frac{c p}{x^2} \hat{i}$
B $-\frac{c \vec{p}}{x^2} \hat{i}$
C $\frac{c p}{x} \hat{i}$
Dzero

Correct answer

B. $-\frac{c \vec{p}}{x^2} \hat{i}$

Step-by-step solution

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