A conducting square frame of side 'a' an...

A conducting square frame of side 'a' and a long straight wire carrying current I are located in the same plane as shown in the figure. The frame moves to the right with a constant velocity 'V'. The emf induced in the frame will be proportional to :

`1/(2x-a)^2`

`1/(2x+a)^2`

`1/((2x-a)(2x+a))`

`1/x^2`

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