Use Coupon: CART20 and get 20% off on all online Study Material

Total Price: Rs.

There are no items in this cart.
Continue Shopping
Grade: 12

a thin straight conductor lies along the axis of a hollow conductor of radius R.the 2 carry equal currents in the same direction.plot the magnetic field against the distance r from the axis.?

9 years ago

Answers : (1)

Aman Bansal
592 Points

dear ayush

We Will Use Superposition in this problem.  You have an outer hollow conductor.  Within the center of that you have an inner solid conductor .

Field due to the outer hollow conductor carrying uniform axial current is 0 in the center.  To convince yourself look at tangential and radial components within the hollow conductor center:

First tangential component.  Integral Htangential dot dL = Ienclosed.  Draw the countour of the integral as a circle.  There is no Ienclosed (remember we are looking only at field from outer conductor)

Look at radial component:
By symmetry, the radial flux inside the conductor must be uniform (doesn't depend on angle theta).  But flux must flow in loops, and the radial symmetry doesn't allow any return path for flux.  So radial flux must be 0.

Above we have shown the outer hollow conductor creates no flux in it's center. So the flux that the inner conductor is exposed to is only the flux that it creates.... which is a simple textbook problem...

thus you can easily calculate

 We are all IITians and here to help you in your IIT JEE preparation.

Now you can win exciting gifts by answering the questions on Discussion Forum. So help discuss any query on askiitians forum and become an Elite Expert League askiitian.

Now you score 5+15 POINTS by uploading your Pic and Downloading the Askiitians Toolbar : Click here to download the toolbar.. 


9 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies

Course Features

  • 101 Video Lectures
  • Revision Notes
  • Previous Year Papers
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Test paper with Video Solution

Course Features

  • 110 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions

Ask Experts

Have any Question? Ask Experts

Post Question

Answer ‘n’ Earn
Attractive Gift
To Win!!! Click Here for details