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Saitama
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Homework Statement
Two point charges of magnitude q and 3q are located at a distance of 'a' from each other within an infinite dielectric medium of dielectric constant k. The force by the larger charge 3q, on the dielectric equals
A)zero
B)##\frac{1}{4\pi \epsilon_o} \left(1-\frac{1}{k}\right)\frac{3q^2}{a^2}##
C)##\frac{1}{4\pi \epsilon_o}(k-1)\frac{3q^2}{a^2}##
D)None
Homework Equations
The Attempt at a Solution
Honestly, I don't quite understand the question. How someone finds force on the medium in which it is placed?
Any help is appreciated. Thanks!
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