GATE ECE · 2022 · EC
Question 56: Carrier transport
Give it a try, then reveal the answer to check your work.
Question 56
ECNAT2 marksNeeds review
A
-type semiconductor with zero electric field is under illumination (low level injection) in steady state condition. Excess minority carrier density is zero at
, where
cm is the diffusion length for electrons. Assume electronic charge,
C. The profiles of photo-generation rate of carriers and the recombination rate of excess minority carriers (
) are shown. Under these conditions, the magnitude of the current density due to the photo-generated electrons at
is ________ mA/cm
(rounded off to two decimal places). 
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerEXPLORE & PRACTISE
Paper and topic context
See where this question comes from and choose what to practise next.
2022EC
GATE ECE 2022 · Paper 1
Electronics and Communication Engineering · Original paper archive
- Section
- Electronics and Communication Engineering
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
Practise related topics
Explore more previous year questions using this question’s imported topic tags.
electronics
GATE ECE previous year questions
communication engineering
GATE ECE previous year questions
signals and systems
GATE ECE previous year questions
carrier transport
GATE ECE previous year questions
semiconductors
GATE ECE previous year questions
Comments
Ask a question, share your approach, or help someone understand.
Log in to view the discussion
You’re not logged in. Log in or create an account to see discussions and add comments.