A) \[\frac{{{\mu }_{0}}nI}{(b-a)}{{\log }_{e}}\frac{a}{b}\]
B) \[\frac{{{\mu }_{0}}nI}{2(b-a)}\]
C) \[\frac{2{{\mu }_{0}}nI}{b}\]
D) \[\frac{{{\mu }_{0}}nI}{2(b-a)}{{\log }_{e}}\frac{b}{a}\]
Correct Answer: D
Solution :
Consider an element of thickness\[dr\]at a distance\[r\]from the centre of spiral coil.You need to login to perform this action.
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