Question:
Figure shows a circuit in which three identical diodes are used. Each diode has forward resistance of $20 \,\Omega$ and infinite backward resistance. Resistors $R_{1}=R_{2}=R_{3}=50\,\Omega$. Battery voltage is $6\, V$. The current through $R_3$ is:
Figure shows a circuit in which three identical diodes are used. Each diode has forward resistance of $20 \,\Omega$ and infinite backward resistance. Resistors $R_{1}=R_{2}=R_{3}=50\,\Omega$. Battery voltage is $6\, V$. The current through $R_3$ is:
Updated On: Sep 24, 2024
- $50\,mA$
- $100\,mA$
- $60\,mA$
- $25\,mA$
Hide Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Here, diodes $D_1$ and $D_2$ are forward biased and $D_3$ is reverse biased.
Therefore current through $R_3$
$i=\frac{V}{R '}=\frac{6}{120}=\frac{1}{20}A=50\,mA$
Therefore current through $R_3$
$i=\frac{V}{R '}=\frac{6}{120}=\frac{1}{20}A=50\,mA$
Was this answer helpful?
0
0
Top Questions on Semiconductor electronics: materials, devices and simple circuits
- Draw a neat and labelled circuit diagram for a full wave rectifier.
- Maharashtra Class XII - 2025
- Physics
- Semiconductor electronics: materials, devices and simple circuits
- State any four advantages of light emitting diode (LED).
- Maharashtra Class XII - 2025
- Physics
- Semiconductor electronics: materials, devices and simple circuits
- The gate which produces high output, when its both inputs are high is --
- Maharashtra Class XII - 2025
- Physics
- Semiconductor electronics: materials, devices and simple circuits
- Consider a n-type semiconductor in which $ n_e $ and $ n_h $ are the number of electrons and holes, respectively.
- JEE Main - 2025
- Physics
- Semiconductor electronics: materials, devices and simple circuits
- Below given are some statements about electronic devices:
(A) Diodes can be used for rectifying an ac voltage.
(B) For semiconductors, band gap energy E\(_g\) > 3 eV.
(C) By changing the external applied voltage, junction barriers can be changed.
(D) p-n junction is the 'key' to all semiconductor devices.
Choose the correct answer from the options given below:- CUET (UG) - 2025
- Physics
- Semiconductor electronics: materials, devices and simple circuits
View More Questions
Questions Asked in JEE Main exam
The motion of an airplane is represented by the velocity-time graph as shown below. The distance covered by the airplane in the first 30.5 seconds is km.
- JEE Main - 2025
- Kinematics
The least acidic compound, among the following is
- JEE Main - 2025
- Organic Chemistry
Choose the correct set of reagents for the following conversion:
- JEE Main - 2025
- Organic Chemistry
- JEE Main - 2025
- Organic Chemistry
- In a group of 3 girls and 4 boys, there are two boys \( B_1 \) and \( B_2 \). The number of ways in which these girls and boys can stand in a queue such that all the girls stand together, all the boys stand together, but \( B_1 \) and \( B_2 \) are not adjacent to each other, is:
- JEE Main - 2025
- Permutations
View More Questions
Concepts Used:
Semiconductors
Semiconductors are a crystalline solid materials, whose electrical conductivity lies between a conductor and an insulator. Semiconductors are mainly used in the manufacturing of electronic devices like capacitors, transistors, diodes, Integrated circuits, etc.
Properties of Semiconductor:
- Semiconductor acts like an insulator at Zero Kelvin. On increasing the temperature, it works as a conductor.
- Due to their exceptional electrical properties, semiconductors can be modified by doping to make semiconductor devices suitable for energy conversion, switches, and amplifiers.
- Lesser power losses.
Uses of Semiconductor:
- Semiconductors are widely used in manufacturing electronics devices like transistors, diodes, sensors, integrated circuits.
- Semiconductors are widely used in all electronic devices, like mobile phones, digital cameras, communication devices, trains, ATMs, etc.