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Two equal point charges Q=Square root(2) micro coulomb are placed at each of the two opposite corners of a sqaure and equal point charges q at each of the other two corners .What must be the value of q so that resultant force on Q is zero Ans is -0.5 micro coulomb but i cannot understand why - is coming

Two equal point charges Q=Square root(2) micro coulomb are placed at each of the two opposite corners of a sqaure and equal point charges q at each of the other two corners .What must be the value of q so that resultant force on Q is zero


Ans is -0.5 micro coulomb but i cannot understand why - is coming







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1 Answers

Sher Mohammad IIT Delhi
askIITians Faculty 174 Points
8 years ago
use kq/r1^2-kq2/r2^2=0

put the values to get the answer.
sher mohammad
faculty askiitians
b.tech, iit delhi

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