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In a coaxial, straight cable, the centra...

In a coaxial, straight cable, the central conductor and the outer conductor carry equal currents in opposite directions. The magnetic field is zero.

A

outside the cable

B

outside the cable

C

inside the inner conductor

D

in between the two conductors

Text Solution

Verified by Experts

The correct Answer is:
A

At distance `r` from centre `(rgtC)`
Net enclosed current `=0`
Hence `B_(P)=0`
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CP SINGH-MAGNETIC FIELD-EXERCISE
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  2. A solid metallic cylinder carriers a direct current. The magnetic fiel...

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  9. An infinitely long hollow conducting cylinder with inner radius (r )/(...

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  10. A coaxial cable consists of a thin inner conductor fixed along the axi...

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  11. In previous question, if both conductors carry equal currents in the s...

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  12. let B be the magnetic field at a point between the two conductors, at ...

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  13. A long, straight, hollow conductor (tube) carrying a current has two s...

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  14. Consider a coaxial cable which consists of an inner wire of radius a s...

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