InterviewSolution
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InterviewSolution
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In fig. a central particle of charge -q is surrounded by two circular rings of charged particle of radii r and R, with Rgtr. what is the magnitude and dirction of the net electrostatic force on the central particle due to the other particles? |
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Answer» Solution :Net FORCE on charge due to outer ring will be zero. Due to INNER ring. The MAGNITUDE of force on `-q` at CENTER is `F_(n)=sqrt(F^(2)+F^(2))=sqrt(2)F=sqrt(2)xx(1)/(4 pi epsilon_(0))xx(2qxxq)/(r^(2))` `=(q^(2))/(sqrt(2)pi epsilon_(0)r^(2))` The direction is at angle `45^(@)` from the x-axis in second quardrant. |
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