A) \[2\times {{10}^{-7}}N,\]repulsive
B) \[2\times {{10}^{-7}}N,\]attractive
C) \[2\times {{10}^{-4}}N,\]repulsive
D) \[2\times {{10}^{-4}}N,\]attractive
Correct Answer: D
Solution :
The force per unit length of wire 2 due to wire 1 is, \[\frac{F}{l}=\frac{{{\mu }_{0}}}{2\pi }\frac{{{i}_{1}}{{i}_{2}}}{r}\] Making substitution, we obtainYou need to login to perform this action.
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