Two identical thin rings, each of radius a meter, are coaxially
placed at a distance R meter apart. If Q₁ coulomb and Q₂
coulomb are respectively the charges uniformly spread on
the two rings, the work done in moving a charge q coulomb
from the centre of one ring to that of the other is
(a) Zero (b) q(Q₁ - Q₂)(√2 - 1)/4√2πℰ₀a
(c) q√2(Q₁ + Q₂)/4πℰ₀a
(d) q(Q₁ + Q₂)(√2 + 1)/4√2πℰ₀a
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Option b) is the correct answer...
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Answer:
option b is correct thanku for asking... okay
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