1.

Two isolated point poles of strength 30 A-m and 60 A-m are placed at a distance of 0.3m. The force of repulsion is

A. \[2\times {{10}^{-3}}N\]
B. \[2\times {{10}^{-4}}N\]
C. \[2\times {{10}^{5}}N\]
D. \[2\times {{10}^{-5}}N\]
Answer» B. \[2\times {{10}^{-4}}N\]


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