Answer the question How the b part is done? Physics moving charges Share with your friends Share 0 Vipra Mishra answered this Solution In b part it is considered that x <<< RSoB =μoNiR22R2+x23/2Taking R2 common B =μoNiR22R21+x2R23/2Taking power term up to apply binomial expansionB =μoNi21+x2R2-3/2Applying binomial expansionB =μoNi21+-32x2R2+ ....B =μoNi21-32x2R2+ ....Now as x <<< R so other terms canbe neglected as value will be neligible.SoB =μoNi21-32x2R2 0 View Full Answer
