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Question

Field at a distance x due to a circular ring, EG=GM(R2+x2)3.

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Solution


Let the linear mass velocity of the ring be λ
Gravitational potential =GMr2+x2
As potential is scalar quantity it will be added for each unit mass.
Now, E=dVdx=d(GMr2+x2)dx
E=GM(R2+x2)3

1106932_1013374_ans_94a9478052464cc0a9c1b22a7e96cd90.jpg

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