BITSAT 2014 Paper

Section: Physics

Question : 23 of 150

Marks: +1, -0

Two long coaxial and conducting cylinders of radius a and b are separated by a material of conductivity σ and a constant potential difference V is maintained between them, by a battery. Then the current, per unit length of the cylinder flowing from one cylinder to the other is –

4πσ
ln(
b
a
)
V
4πσ
(b+a)
V
2πσ
ln(
b
a
)
V
2πσ
(b+a)
V

Validate

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