A Zener diode is used in a voltage regulator circuit as shown below. Its breakdown voltage is 15 V. What is the current flowing through the Zener diode?
5 mA
The total voltage applied is 25 V. The voltage across the resistor is (25V - 15V) = 10V. Using Ohm's law, the current through the 500Ω resistor is I = V/R = 10V / 500Ω = 0.02 A = 20 mA. The current through the 1kΩ resistor is I = 15V / 1000Ω = 15 mA. Thus, the Zener diode current is 20 mA - 15 mA = 5 mA.
Important Questions from Semiconductor and Electronic Devices
Silicon can be doped using one of the following elements as dopant:
(A) Arsenic
(B) Indium
(C) Phosphorus
(D) BoronTo get an n-type semiconductor, the dopants that can be used are:
Let iE, iC, and iB represent the emitter current, collector current, and the base current respectively in a transistor. Choose the correct statement:
A Zener diode is used in a voltage regulator circuit as shown below. Its breakdown voltage is 15 V. What is the current flowing through the Zener diode?
Choose the correct experimental circuit arrangement for studying V-I characteristics of a p-n junction diode in forward bias:
During the p-n junction formation, when an electron diffuses from n → p, it leaves behind an:
