GATE PH · 2026 · PH
Question 60: Semiconductors in Equilibrium
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Question 60
PHNAT2 marksNeeds review
The output signal (current
) of a reverse biased (with a voltage
) photodiode, on which light is incident, is fed to an amplifier (see figure). The output voltage is digitized by a 10 bit Analog to Digital converter (ADC) which has a reference voltage of 5 V. The smallest current
which can be measured by the circuit in nano-Amperes (rounded off to one decimal place) is _____. 
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2026PH
GATE PH 2026 · Paper 1
Physics · Original paper archive
- Section
- Physics
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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