Answered: Sketch a plot of the current I versus…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

Sketch a plot of the current I versus voltage V across an ideal photocell when visible light is incident on the cell. Note that the “amplitude” factor I0 should be assumed to be negative.

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$G i v e n : S k e t c h a p l o t o f t h e c u r r e n t I v e r s u s v o l t a g e V a c r o s s a n i d e a l p h o t o c e l l w h e n v i s i b l e l i g h t i s i n c i d e n t o n t h e c e l l . N o w, C a s e 1 : F r e q u e n c y a n d i n t e n s i t y o f i n c i d e n t l i g h t k e p t c o n s \tan t F o r a g i v e n i d e a l p h o t o c e l l, I f t h e f r e q u e n c y a n d i n t e n s i t y o f i n c i d e n t l i g h t k e p t c o n s \tan t (v i s i b l e l i g h t) a n d t h e p o t e n t i a l d i f f e r e n c e b e t w e e n t h e p l a t e s i s i n c r e a s e d, p h o t o c u r r e n t a l s o i n c r e a s e s u n t i l i t r e a c h e s a m a x i m u m (s a t u r a t e d) v a l u e (I_{0}) . I f t h e t e r m i n a l s a r e r e v e r s e d a n d i n c r e a s e t h e p o t e n t i a l d i f f e r e n c e g r a d u a l l y, t h e n p h o t o c u r r e n t d e c r e a s e s a n d a t o n e p o i n t i t b e c o m e s z e r o . T h i s p o i n t w h e r e t h e c u r r e n t i s z e r o i s t e r m e d a s S t o p p i n g P o t e n t i a l . T h e p l o t o f t h e p h o t o c u r r e n t (I) v e r s u s v o l t a g e (V) a c r o s s t h e i d e a l p h o t o c e l l c a n b e d r a w n a s f o l l o w s :$

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