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A long cylinder with uniformly charged surface an cross-section radius a  moves with a constant velocity v  along its axis. An electric field strength at the surface of the cylinder is equal to  E. So current caused by mechanical transfer of a charge.
  • a)
  • b)
  • c)
  • d)
    None of these
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A long cylinder with uniformly charged surface an cross-section radius...
The convection current is
Here, dq = λdx. where λ is the linear charge density. But, from the gauss, theorem, electric field at the surface of the cylinder,

Hence, substituting the value of λ and subsequently of dq  in Equation (i), we get
The correct answer is: 
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Most Upvoted Answer
A long cylinder with uniformly charged surface an cross-section radius...
The convection current is
Here, dq = λdx. where λ is the linear charge density. But, from the gauss, theorem, electric field at the surface of the cylinder,

Hence, substituting the value of λ and subsequently of dq  in Equation (i), we get
The correct answer is: 
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A long cylinder with uniformly charged surface an cross-section radiusa moves with a constant velocityv along its axis. An electric field strength at the surface of the cylinder is equal toE. So current caused by mechanical transfer of a charge.a)b)c)d)None of theseCorrect answer is option 'B'. Can you explain this answer?
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