Two like magnetic poles of strength \( 10 \mathrm{Am} \) and \( 40 \mathrm{Am} \) are separated ... VIDEO
Two like magnetic poles of strength \( 10 \mathrm{Am} \) and \( 40 \mathrm{Am} \) are separated by a distance \( 30 \mathrm{~cm} \). The intensity of magnetic field is zero on the line joining them:
a. At a point \( 10 \mathrm{~cm} \) from the stronger pole
b. At a point \( 20 \mathrm{~cm} \) from the stronger pole
c. At the mid-point
d. At infinity
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