A small rectangular loop of wire in the plane of the paper is moved with uniform speed across a ...

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A small rectangular loop of wire in the plane of the paper is moved with uniform speed across a limited region of uniform magnetic field perpendicular to the plane of the paper, as shown. Which graph would best represent the variation of the electric current \( I \), in the wire with time \( t \)
[KVPY 2009]
(a)
(b)
(c)
(d)
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