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Give answer! Which of the following graphs shows the variation of electric field E due to a conducting cylinder of radius R as a function of distance from the centre

Which of the following graphs shows the variation of electric field E due to a conducting cylinder of radius R as a function of distance from the centre

  • Option 1)

  • Option 2)

  • Option 3)

  • Option 4)

 
Answers (1)
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As we learned

Electric field due to a cylinder   is governed by following equation E=0, for r<R ...(i)

and  E=\frac{\lambda }{2\pi \varepsilon R}  for r\geq R   ....(ii)

i.e. inside the CYLINDER  field will be zero and outside the cylinder will vary according to

E\alpha \frac{1}{r}

 


Option 1)

Option 2)

Option 3)

Option 4)

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