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Question

In the given circuit, the current through Zener diode is 5k3 mA. The value of k is ___



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Solution

The voltage across 500 ohm resistor is, VR1=1510=5 V.

The current through it,

I=5500=10 mA

The current through 1500 ohm resistor is,

IR2=101500=203 mA

So, the current through Zener diode is

IZ=10203=103 mA

Given, IZ=5k3 mA

k=2

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