Home
Class 12
PHYSICS
A current I ampere flows along the inner...

A current I ampere flows along the inner conductor of a co-axial cable and returns along the outer conductor of the cable , then the magnetic induction at any point outside the conductor at a distance r metre from the axis is

A

`infty`

B

zero

C

`(mu_(0))/(4pi) (2i)/r`

D

`(mu_(0))/(4pi) (2pii)/(r)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • SOURCES OF MAGNETIC FIELD

    CENGAGE PHYSICS ENGLISH|Exercise single correct Answer Type|35 Videos

  • RAY OPTICS

    CENGAGE PHYSICS ENGLISH|Exercise DPP 1.6|12 Videos

  • WAVE OPTICS

    CENGAGE PHYSICS ENGLISH|Exercise Comprehension Type|14 Videos

Similar Questions

Explore conceptually related problems

A current i ampere flows along the inner conductor of a coaxial cable and returns along the outer conductor fo the cable, then the magnetic induction at any point outside the conductor at a distance r metre from the axis is

A current flows in a conductor from east to west. The direction of the magnetic field at a points above the conductor is

A current I ampere flows along an infinitely long straight thin walled tube, then the magnetic induction at any point inside the tube is .

A current i is flowing in a straight conductor of length L. The magnetic induction at a point distant L/4 from its centre will be-

A current i is flowing in a straight conductor of length L. The magnetic induction at a point distant L/4 from its centre will be-

A current 'I' flows along an infinitely long straight conductor. If 'r' is the perpendicular distance of a point from the lower end of the conductor, then the magnetic induction B is given by

Two long straight parallel conductors 10 cm apart, carry currents of 5A each in the same direction. Then the magnetic induction at a point midway between them is

A constant direct current of uniform density hatj is flowing in an infinitely long cylindrical conductor.The conductor contains an infinitely long cylindrical cavity whose axis is parallel to that of the conductor and is a a distance vecl from it.What will be the magnetic induction vecB at a point inside the cavity at a distance vecr from the centre of cavity?

A long straight vertical conductor carries a current of 8A in the upward direction. What the magnitude of the resultant magnetic induction at a point in the horizonatal plane at a distance of 4 cm from the conductor towards South? (The horizontal compo-nent of earth's magnetic induction =4 xx 10^(-5)T )

A conductor is carrying a current i. the magnetic field intensity at a the point O which is the common centre of three arcs is