A) \[2\times {{10}^{-7}}\,N/m\]
B) \[2\times {{10}^{-8}}\,N/m\]
C) \[5\times {{10}^{-8}}\,N/m\]
D) \[{{10}^{-7}}\,N/m\]
Correct Answer: A
Solution :
Magnetic force between parallel wires per unit length is \[\frac{F}{l}=\frac{{{\mu }_{0}}}{2\pi }\times \frac{{{i}_{1}}\,\,{{i}_{2}}}{r}\]You need to login to perform this action.
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