Two identical thin rings, each of radius R metre are coaxially placed at distance R metre apart. If Q, and Q, coul are respectively the charges uniformly spread on the two rings, the work done in moving a charge 9 from the centre of one ring to that of the other is :

Two identical thin rings, each of radius R metre are coaxially placed

1.	Two identical thin rings, each of radius R metre are coaxially placed at distance R metre apart. If Q, and Q, coul are respectively the charges uniformly spread on the two rings, the work done in moving a charge 9 from the centre of one ring to that of the other is :
Answer» zero `q(Q_1 -Q_2) ( SQRT(2)-1 ) // sqrt((2)) 4piepsi_0 R ` `q sqrt(2)(Q_1 +Q_2 ) // 4 pi epsi_0 R ` ` q ( Q_1+Q_2 )( sqrt(2) +1) // sqrt((2)) 4piepsi_0 R` Answer :B

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Two identical thin rings, each of radius R metre are coaxially placed at distance R metre apart. If Q, and Q, coul are respectively the charges uniformly spread on the two rings, the work done in moving a charge 9 from the centre of one ring to that of the other is :

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