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Question:

The reading of the ammeter for a silicon diode in the given circuit is:

11.5 mA

13.5 mA

0

15 mA

Solution:

Silicon diode is in forward bias. Hence across diode potential barrier ΔV=0.7 volts. I=V−ΔVR = 3−0.7200 = 2.3200 = 11.5mA