Determine ID1.

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Determine I_D1.—

1. 0 mA
2. 29.40 mA
3. 14.70 mA
4. 14.09 mA

Correct Option: A

Here, Ge diode ‘ON’ preventing Si diode from turning ‘ON’ as shown below in figure
Therefore, I_D1 = 0 mA Hence alternative (A) is the correct choice.