I-V Characteristics of LED, Photodiode, Solar Cell and Zener Diode
I-V Characteristics of LED, Photodiode, Solar Cell and Zener Diode: Overview
This topic covers concepts, such as, Zener Diode, Photo Diode, Applications of Multimeter & Multimeter etc.
Important Questions on I-V Characteristics of LED, Photodiode, Solar Cell and Zener Diode
Which of the following is/are correct
(i) The symbol for zener diode is
(ii) The reverse I – V characteristics of a zener diode.
![](https://assets-cf.embibe.com/production/web-assets/assets/seo/forward.webp)
Solar cells are made of
![](https://assets-cf.embibe.com/production/web-assets/assets/seo/forward.webp)
What is the order of the reverse saturation current before breakdown in a zener diode?
![](https://assets-cf.embibe.com/production/web-assets/assets/seo/forward.webp)
Solar cell is a photodiode operated at
![](https://assets-cf.embibe.com/production/web-assets/assets/seo/forward.webp)
Identify characteristics are given below, in the order (i), (ii), (iii), (iv):
i. ii.
iii. iv.
![](https://assets-cf.embibe.com/production/web-assets/assets/seo/forward.webp)
Which of the characteristic curve are correct.
Photodiode for
Solar cell
L.E.D.
![](https://assets-cf.embibe.com/production/web-assets/assets/seo/forward.webp)
The reading corresponding to zener diode are given below in the table. From given table, determine the reverse breakdown voltage of the zener diode.
Forward bias | Reverse bias | ||
(volt) | (volt) | ||
![](https://assets-cf.embibe.com/production/web-assets/assets/seo/forward.webp)
Which of the characteristic curve are correct :
(A) Photo diode for
(B) Solar cell
(C) L.E.D
![](https://assets-cf.embibe.com/production/web-assets/assets/seo/forward.webp)
The NOR gate is OR gate followed by
![](https://assets-cf.embibe.com/production/web-assets/assets/seo/forward.webp)
Which of the following is not true in the uses of LEDs over conventional incandescent bulb.
![](https://assets-cf.embibe.com/production/web-assets/assets/seo/forward.webp)
Solar cell is a photodiode operated at
![](https://assets-cf.embibe.com/production/web-assets/assets/seo/forward.webp)
For the circuit shown below, the current through the Zener diode is :
![](https://assets-cf.embibe.com/production/web-assets/assets/seo/forward.webp)
In the given circuit the current through Zener Diode is close to
![](https://assets-cf.embibe.com/production/web-assets/assets/seo/forward.webp)
In the figure shown, the currents through the zener diode and load resistance are respectively
![](https://assets-cf.embibe.com/production/web-assets/assets/seo/forward.webp)
Three photodiodes and are made of semiconductors having band gaps of and , respectively. Which one will be able to detect light of wavelength of ?
![](https://assets-cf.embibe.com/production/web-assets/assets/seo/forward.webp)
To measure light intensity we use
![](https://assets-cf.embibe.com/production/web-assets/assets/seo/forward.webp)
Find the correct value of current ( and ) in the circuit shown in the figure.
![](https://assets-cf.embibe.com/production/web-assets/assets/seo/forward.webp)
In the given circuit, the supply voltage is . The Zener-diode operates at a minimum diode current of . Calculate the range over which load resistance can be varied.
![](https://assets-cf.embibe.com/production/web-assets/assets/seo/forward.webp)
In a photodiode the conductivity increases when light of wavelength less than is incident. The band gap is
![](https://assets-cf.embibe.com/production/web-assets/assets/seo/forward.webp)
The correct symbol for Zener diode is :-
![](https://assets-cf.embibe.com/production/web-assets/assets/seo/forward.webp)