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

A conducting square frame of side .a. and a long straight wire carrying currnet 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 inthe frame will be proportional to

A

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

B

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

C

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

D

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

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