A photo-detector circuit shown in figure. The photo-diode has an active area of 10+2 cm2 and sensitivity of 0.55 A/W. When light of intensity 10mW/cm2 falls on the photo-diode, the output voltage VO is ___ volt.a)-14b)-13Correct answer is between '-14,-13'. Can you explain this answer?

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A photo-detector circuit shown in figure. The photo-diode has an active area of 10⁺² cm² and sensitivity of 0.55 A/W. When light of intensity 10mW/cm² falls on the photo-diode, the output voltage V_O is ___ volt.

a)
-14
b)
-13

Correct answer is between '-14,-13'. Can you explain this answer?

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A photo-detector circuit shown in figure. The photo-diode has an acti...

The photo diode current is

I = light intensity x sensitivity x Area

= 10 x 10^-3 x 0.55 x 10² x 10^-4

= 0.55 x 10^-4 A

Hence V_o1 = (-100k) x I = -5.5 volt

Now for 2^nd op-amp,

Current through 20 kΩ resistor is

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A photo-detector circuit shown in figure. The photo-diode has an active area of 10+2 cm2 and sensitivity of 0.55 A/W. When light of intensity 10mW/cm2 falls on the photo-diode, the output voltage VO is ___ volt.a)-14b)-13Correct answer is between '-14,-13'. Can you explain this answer?

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