ElectrostaticsHard
Question
Two identical thin rings, each of radius R meter are coaxially placed at distance R meter apart. If Q1 and Q2 coulomb are respectively the charges uniformly spread on the two rings, the work done in moving a charge q from the centre of one ring to that of the other is :
Options
A.Zero
B.
C.
D.
Solution
Ui =
Uf =
Work done by external force : ᐃU = Uf - Ui
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