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The curve between current (i) and poten...

The curve between current `(i)` and potential difference `(V)` for a photo cell will be

A

B

C

D

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The correct Answer is:
D
In photocell , at a particular negative potential (stopping potential `V_(0)`) of anode , photoelectric current is zero ,
At the potential difference between cathode and anode increases current through the circuit increases but after some time constant current (saturation current)flows through the circuit even if potential difference still increasing.
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