The figure shows the various positions (labelled by subscripts) of small magnetised needles P and Q. The arrows show the direction of their magnetic movement.configuration corresponds to the lowest potential energy among all the configurations shown
A
PQ3
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B
PQ4
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C
PQ5
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D
PQ6
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Solution
The correct option is DPQ6
Given, two small magnetic needle P and Q respectively,
So, At pQ6 when all the movements are in the parallel direction potential will be minium.