InterviewSolution
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InterviewSolution
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For the situation shown in the figure below ("assume "`r gtgt` length fo dispole ) mark out the correct statement (s) - .A. Force acting on the dipole is zeroB. Force acting on the dipole is approximately ` (PQ)/(4 pie_(0) r^(2))` and is acting upwardC. Torque acting on the dipole is ` (pq)/(4 pi e_(0)r^(2))` clockwise directionD. Torque acting on the dipole is `(pQ)/(4 pi e_(0)r^(2))` in ant i-clockwise direction |
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Answer» Correct Answer - B::C (A) Force on charge due to diple `vec F =Qvec E rArr = Q. 1/(4 pi in0) p/r^3` ` F= (pQ)/(4 pi in_0 r^3)` acting downward so force on diple will be equal and oppositede (C ) `vec tau = vec P xx P ( hat j ) xx 1/(4 pi in_0) Q/r^2 hat i` `vec tau = 1/(4 pi in0) (pQ)/r^3 (-hat k)`. |
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