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JEE Main 10 Jan 2019 Shift 2 Solved Paper
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© examsnet.com
Question : 23
Total: 90
For the circuit shown below, the current throughthe Zener diode is :
5 mA
Zero
14 mA
9 mA
Validate
Solution:
Assuming zener diode doesnot undergobreakdown, current in circuit =
120
15000
= 8 mA
∴ Voltage drop across diode = 80 V > 50 V.
The diode undergo breakdown.
Current is
R
1
=
70
5000
= 14 mA
Current is
R
2
=
50
10000
= 5 mA
∴ Current through diode = 9mA
© examsnet.com
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