The zener diode has a V z = 30 V . The current passing through the diode for the following circuit is___ mA .

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The zener diode has a $V_{z} = 30 V$ . The current passing through the diode for the following circuit is___ $mA .$

PhysicsSemiconductorsJEE MainJEE Main 2021 (26 Feb Shift 2)

Solution:

2215 Upvotes Verified Answer

The correct answer is: 9

$i = \frac{60}{4000} A$

$i_{1} = \frac{30}{5000} A$

$i - i_{1} = \frac{60}{4000} - \frac{30}{5000} = \frac{9}{1000} A$

current from zener diode

$i_{2} = i - i_{1} = 9 mA$

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