Identify the semiconductor devices whose characteristics are given below, in the order $(a), (b), (c), (d)$ :

Question

Assuming in forward bias condition there is a voltage drop of $0.7$ V across a silicon diode, the current through diode $D_1$ in the circuit shown is ________ mA. (Assume all diodes in the given circuit are identical)

Answer 1

The question requires us to identify certain semiconductor devices based on given characteristics. Let's analyze the characteristics typically associated with each device listed in the options to determine the correct sequence:

Simple Diode: A simple diode, also known as a PN junction diode, exhibits rectification properties. In the forward bias, it allows current to pass, and in the reverse bias, it blocks current.
Zener Diode: A Zener diode operates in the reverse breakdown region. It maintains a constant voltage across it when reverse biased past its breakdown voltage, making it useful in voltage regulation.
Solar Cell: A solar cell converts light energy into electrical energy. Its characteristics include a current output that increases with light intensity.
Light Dependent Resistor (LDR): An LDR changes its resistance based on light intensity: resistance decreases with increasing light.

Given the description of characteristics, we need to match them to the correct semiconductor devices in the order of $(a), (b), (c), (d)$:

(a) is a Simple Diode, which conducts in one direction depending on forward or reverse bias.
(b) is a Zener Diode, characterized by its ability to conduct in reverse after reaching its breakdown voltage.
(c) is a Solar Cell, characterized by converting light energy to electricity, observable measurement as voltage/current.
(d) is an LDR, with resistance decreasing as light intensity increases.

With this reasoning, the answer is clearly the sequencing: Simple diode, Zener diode, Solar cell, Light dependent resistor. Thus, the correct option is: (Simple diode, Zener diode, Solar cell, Light dependent resistance).

Answer 2

The question requires us to identify certain semiconductor devices based on given characteristics. Let's analyze the characteristics typically associated with each device listed in the options to determine the correct sequence:

Simple Diode: A simple diode, also known as a PN junction diode, exhibits rectification properties. In the forward bias, it allows current to pass, and in the reverse bias, it blocks current.
Zener Diode: A Zener diode operates in the reverse breakdown region. It maintains a constant voltage across it when reverse biased past its breakdown voltage, making it useful in voltage regulation.
Solar Cell: A solar cell converts light energy into electrical energy. Its characteristics include a current output that increases with light intensity.
Light Dependent Resistor (LDR): An LDR changes its resistance based on light intensity: resistance decreases with increasing light.

Given the description of characteristics, we need to match them to the correct semiconductor devices in the order of $(a), (b), (c), (d)$:

(a) is a Simple Diode, which conducts in one direction depending on forward or reverse bias.
(b) is a Zener Diode, characterized by its ability to conduct in reverse after reaching its breakdown voltage.
(c) is a Solar Cell, characterized by converting light energy to electricity, observable measurement as voltage/current.
(d) is an LDR, with resistance decreasing as light intensity increases.

With this reasoning, the answer is clearly the sequencing: Simple diode, Zener diode, Solar cell, Light dependent resistor. Thus, the correct option is: (Simple diode, Zener diode, Solar cell, Light dependent resistance).

Identify the semiconductor devices whose characteristics are given below, in the order $(a), (b), (c), (d)$ :

The Correct Option is A

Solution and Explanation

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