A) \[12\times {{10}^{-5}}\]
B) \[{{10}^{-5}}\]
C) \[5\times {{10}^{-5}}\]
D) \[7\times {{10}^{-5}}\]
Correct Answer: C
Solution :
The magnetic field induction at centre O due to circular current, \[{{B}_{P}}\,=\frac{{{\mu }_{0}}}{2}\,\frac{{{l}_{2}}}{R}\,=\frac{4\pi \times {{10}^{-7}}\times 4}{2\times 0.02\,\pi }\,\] and magnetic field induction at the centre due to circular current , Net magnetic field induction it the centre due to both the circular currentsandYou need to login to perform this action.
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