First slide

Diodes

Question

If the voltage between the terminals A and B is 15V and zener breakdown voltage is 8V, then the potential across R is

Easy

A

6V
B

8V
C

7V
D

5V

Solution

$P . D a c r o s s z e n e r d i o d e = P . D a c r o s s R_{L} = 8 V$
$P . D a c r o s s R = V_{i n} - V_{z} = 15 - 8 = 7 V$

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