Question

PQ is a current carrying conductor producing magnetic field around it. A and B are two points at a distance r1 and r2 from it. If r2>r1 where is the magnetic strength greater and why ?​

Answer 1

Explanation:

magnetic strength for long current carrying wire is

B=uI/2πr

If the distance is less i.e r the magnitude of B is more

so at point A ,B is has more magnitude

Answer 2

Answer: At B

Explanation: Magnetic strength at B is greater as r2 is lesser than r1.

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