Home Physics Magnetism and Matter Magnet and It's Properties Two like magnetic poles of strength 10 and 4…
Physics Magnetism and Matter Magnet and It's Properties MCQ (Single Correct)

Two like magnetic poles of strength 10 and 40 SI units are separated by a distance 30 cm. The intensity of magnetic field is zero on the line joining them

A
At a point 10 cm from the stronger pole
B
At a point 20 cm from the stronger pole
C
At the mid-point
D
At infinity

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Text Solution

Verified by Experts
The correct answer is:
B

Suppose magnetic field is zero at point which lies at a distance from 10 units pole. Hence, at .

So, from stronger pole distance is .

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