Posted by P on Tuesday, March 5, 2013 at 9:15am.
Two conducting thin hollow cylinders are coaligned. The inner cylinder has a radius R1 , the outer has a radius R2 . Calculate the electric potential difference V(R2)V(R1) between the two cylinders. The inner cylinder has a surface charge density of σa=σ , where σ>0 , and the outer surface has a surface charge density of σb=3σ ,
The cylinders are much much longer than R1 . Thus, you may ignore end effects and neglect the thickness of the cylinders.
a. What is the electric potential difference between the outer cylinder and the inner cylinder V(R2)V(R1) ? Express your answer in terms of R1 , R2 ,σ , and epsilon_0 .
unanswered
b. What is the magnitude of the electric field outside the cylinders, r>R2 ?
Express your answer in terms of r , ,R1,R2 ,σ and epsilon_0.
unanswered
c. What is the electric potential difference between a point at a distance r=2R2 from the symmetry axis and the outer cylinder V(2R2)V(R2)?
Express your answer in terms of R1 ,R2 ,σ and epsilon_0 .

Physics  Anonymous, Tuesday, March 5, 2013 at 10:40pm
Please some one answer.
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