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A coaxial cable is made up of two conduc...

A coaxial cable is made up of two conductors. The inner conductor is solid is of radius `R_(1)` and the outer coductor is hollow of inner radius `R_(2)` and outer radius `R_(3)` . The space between the conductors are carrying currents of equal magnitudes and in oppsite direactions. then the variation of magnetic field with distance form the axis is best plotted as :

A

`(rho)/(4pi)(ab)/((b-a))`

B

`(rho(b-a))/(4pi ab)`

C

`(4pi ab)/(rho(b-a))`

D

`(rho(b-a))/(2pi ab)`

Text Solution

Verified by Experts

The correct Answer is:
B
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