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From the given circuit diagram, what is the value of diode current?(a) 2 mA(b) 0 mA(c) 1.3 mA(d) 1 mAThe question was asked in an internship interview.The origin of the question is Diode Approximations and Series Connection topic in chapter Diode Circuit of Analog Circuits

Answer»

The CORRECT choice is (b) 0 mA

The BEST I can EXPLAIN: The diodes in forward bias, have drops of 0.3V for Ge and 0.7V for Si, and the TOTAL drops cancel out the source voltage, and hence the diode current is zero.



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