GATE 2016 EE (SET 1) Q14

14. A soft iron toroid is concentric with a long straight conductor carrying a direct current I. If the relative permeability \mu_{r} of soft iron is 100, the ratio of the magnetic flux densities at two adjacent points located just inside and just outside the toroid, is ________. 


Subscribe to Thesis123 YouTube Channel by Clicking ( HERE ) For  FREE Video Courses