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Debanjana Adhikari posted an Question
May 27, 2020 • 02:08 am
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30 points
30 points
- CSIR NET
- Physical Sciences
Q64. consider a charge at the origin of 3- dimensional coordinate system. the flux of the electric field through the curved surface of a cone that has a height
Q64. Consider a charge at the origin of 3- dimensional coordinate system. The flux of the electric field through the curved surface of a cone that has a height h and a circular base of radius R (as shown in the figure)is hQ REo OR )hEo (a) (b) (c) 2e
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Dhairya sharma Best Answer
dear see attached.
![cropped1413171781936414904.jpg]()
![eduncle-logo-app]()
we solve these type of problems from gauss law and this law is valid only for symmetric bodies.
![eduncle-logo-app]()
for this charge to cover in symmetric manner we need two cones. and flux from it q/epsilon and hence from one cube is q/2(epsilon) .
![eduncle-logo-app]()
hope this solution will help u.....
![eduncle-logo-app]()
dear see attached carefully.
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Ruby negi
option b is correct means Q/2*epsilon... Ms, vaishali did right... you can make one more cone in opposite direction so that whole surface(first cone+new cone) is now closed...
but if the charge it some other position of cone, you can't do this method...
for any doubt you can ask..
when you make a new cone in opposite side so that plane of both cone is same then the charge is at symmteric position that's why divide the flux equally for both cones...
that's why we divide***