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A broad metal plane is connected to eart...

A broad metal plane is connected to earth through a conducting wire as shown. An electron flies with constant velocity along a straight line above the plate at a distance much less than the linear dimensions of the plate. If the current `I` flowing from the earth to the plate is considered to be positive, then which of the following graph correctly depicts the variation of current `I` with time ?

A

B

C

D

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