A) \[2\times {{10}^{-6}}N/m\]
B) \[3\times {{10}^{-6}}N/m\]
C) \[1\times {{10}^{-6}}N/m\]
D) \[4\times {{10}^{-6}}N/m\]
Correct Answer: C
Solution :
(c) Given, \[{{l}_{1}}=2\,\,A,\,\,{{l}_{2}}=5A,\,d=2m\] \[\therefore \,\,\,\,f=\frac{{{\mu }_{0}}}{4\pi }\frac{2{{l}_{1}}{{l}_{2}}}{d}={{10}^{-7}}\times \frac{2\times 2\times 5}{2}=1\times {{10}^{-6}}N/m\]You need to login to perform this action.
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