CBSE Class 12-science Answered
What is the reason to operate photodiode in reverse bias?
Asked by Mrinal | 24 Feb, 2013, 06:48: PM
Expert Answer
The photodiode is reverse biased for operating in the photoconductive mode. As the photodiode is in reverse bias the width of the depletion layer increases. This reduces the junction capacitance and thereby the response time. In effect, the reverse bias causes faster response times for the photodiode. The photocurrent is linearly proportional to the illuminance.
Answered by | 24 Feb, 2013, 06:55: PM
Concept Videos
-
p-n Diode - Part 1
This video explains the basics of a pn junction. -
Applications of p-n Diode - Part 1
This video explains the diode in a forward and a reverse bias. -
Applications of Transistors - Part 1
This video explains amplification with the help of a transistor. -
Logic Gates - Part 1
This video gives the introduction to logic numbers and explains the NOT gat... -
p-n Diode - Part 2 ...
This video explains the working of a pn junction diode in forward and rever...
CBSE 12-science - Physics
Asked by Chandudevendra99 | 24 Jan, 2024, 08:37: AM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by kabirnarwal0 | 13 Jan, 2024, 01:49: PM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by Abhishek | 23 Mar, 2023, 08:37: PM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by Ramvikassv | 14 May, 2021, 11:14: PM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by jagadeviteli1983 | 06 Sep, 2020, 10:27: AM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by sulaikhasulu393 | 08 May, 2020, 11:05: AM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by kajalkumari2k15 | 30 Nov, 2019, 11:14: AM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by Www.harshalhire51 | 20 Nov, 2019, 09:48: PM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by abhitailor158 | 06 Mar, 2019, 05:56: PM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by vk335548 | 05 Mar, 2019, 10:32: PM
ANSWERED BY EXPERT
