Figure 4.13 shows a long straight wire of a circular cross-section (radius a) carrying steady curre

Figure 4.13 shows a long straight wire of a circular cross-sectionradius acarrying steady current I. The current I is uniformly distributed across this cross-section. Calculate the magnetic field in the region r and r a example 4.7 class 12th physics chapter 4 Moving charges and magnetism NCERT question class 12th physics class 12th physics chapter 4 moving charges and magnetism class 12 class 12th magnetism and moving charges moving charges magnetism class 12th class 12th physics moving charges and magnetism class 12th physics moving charges and magnetism notes