Question

in a zener regulation source voltage is 30 V, series resistance is of 1.5 k ohm, load resistance is 2 k ohm and V_z= 10V find the minimum zener current​

Answer 1

Answer:

Here, Vi=40V,I1=50mA

As maximum current flows through Zener diode, hence I2=0.

∴ Maximum current, I=I1+I2=50mA+0

=50mA=50×10(-3)A

Here, Vo= Voltage drop across Zener =10V

Since I is maximum, hence maximum value of R

is R=

Vi-Vo

I

 

=

40-10

50×10-3

 

=600Ω

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