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Olympiad workbook

Exam: Olympiad workbook
Subject: NSEP
Chapter: Electrostatics

Olympiad workbook · NSEP · Electrostatics

An isolated metallic object is charged in vacuum to a potential V_0...

An isolated metallic object is charged in vacuum to a potential

V_0

using a suitable source, its electrostatic energy being

W_0

. It is then disconnected from the source and immersed in a large volume of dielectric with dielectric constant

K

. The electrostatic energy of the sphere in the dielectric is

Options

A $K^2 W_0$
B $K W_0$
C $W_0 / K^2$
D $W_0 / K$

Correct answer

D. $W_0 / K$

Step-by-step solution

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