1.

In an arrangement of two concentric conducting shells, with centre at origin and radii a and b (a lt b), charges Q_(1) and Q_(2) are given to inner and outer shell, then the potential V at a distance r from the origin is (r lt a )

Answer»

`V = (kQ_(1))/(a ) + (kQ_(2))/(b)`
`V = (kQ_(1))/(R) + (kQ_(2))/(a)`
`V = (kQ_(1))/(a ) + (kQ_(2))/(r)`
`V = ((Q_(1) + Q_(2)))/(r ) `

Answer :A


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