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Need help on a zener diode problem

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exstoges

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**broken link removed**

i have looked through google and my textbook and have no idea how i can approach this question. it seems pretty easy but i have not learned this material. any help is appreciated thanks.
please show work. and what formulas were used etc.
 

Willbe

New Member
What voltage do you get across a 1k resistor with 4 mA through it?

How 'bout with 40 mA through it?
 

earjun

New Member
A zener voltage maintains its rated potential across its terminals only if the the current is within certain limit which is specified by its datasheet.
Here the limit is from 4mA to 40mA.......
Just find out using ohms law the potential applied for which the current through the zener is in that range......
This potential range gives you the answer.......
Try it........
 
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