Physics-
General
Easy

Question

A hollow cylinder having infinite length and carrying uniform current per unit length l along the circumference as shown. Magnetic field inside the cylinder is

  1. fraction numerator mu subscript 0 end subscript lambda over denominator 2 end fraction    
  2. m subscript 0 end subscript l    
  3. 2 m subscript 0 end subscript l    
  4. 3 m subscript 0 end subscript l    

The correct answer is: m subscript 0 end subscript l

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