A Zener diode,having a breakdown voltage equa | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The voltage across the Zener diode remains constant at $15 \, V$ when it is in the breakdown region.The current through the load resistor $(R_L =

Vedclass · Accepted Answer

$5$

Vedclass · Answer

(B) The voltage across the Zener diode remains constant at $15 \, V$ when it is in the breakdown region.The current through the load resistor $(R_L = 1 \, k\Omega)$ is:$i_0 = \frac{V_z}{R_L} = \frac{15 \, V}{1000 \, \Omega} = 0.015 \, A = 15 \, mA$The total current $(i)$ supplied by the source is determined by the voltage drop across the series resistor $(R = 250 \, \Omega)$:$i = \frac{V_{in} - V_z}{R} = \frac{20 \, V - 15 \, V}{250 \, \Omega} = \frac{5 \, V}{250 \, \Omega} = 0.02 \, A = 20 \, mA$Applying Kirchhoff's Current Law at the junction,the current through the Zener diode $(i_z)$ is:$i_z = i - i_0 = 20 \, mA - 15 \, mA = 5 \, mA$

$A$ Zener diode,having a breakdown voltage equal to $15 \, V$,is used in a voltage regulator circuit as shown in the figure. The current through the diode is ..... $mA$.

Similar Questions

$A$ carrier signal $60 \sin(2\pi \times 10^6 t)$ is used to modulate an audio signal $15 \sin(300\pi t)$. The depth of modulation is .........$\%$.

Which of the following does not exist?

Kangaroo rat is found in .........

The classical example of adaptive radiation in the development of new species is:

If $x^y=y^x$, then $x(x-y \log x) \frac{d y}{d x}$ is equal to :

Vedclass Test Series

Exam Paper Generator

Online Exam Module