Assuming the diode in the given circuit diagram to be a silicon p-n junction diode, what is the current for the given circuit diagram?(a) 0(b) 5 mA(c) 4.3 mA(d) Can’t be determinedI had been asked this question in a national level competition.Enquiry is from Diode Basics and Equivalent Circuits in division Diode Circuit of Analog Circuits

Assuming the diode in the given circuit diagram to be a silicon p-n ju

1.	Assuming the diode in the given circuit diagram to be a silicon p-n junction diode, what is the current for the given circuit diagram?(a) 0(b) 5 mA(c) 4.3 mA(d) Can’t be determinedI had been asked this question in a national level competition.Enquiry is from Diode Basics and Equivalent Circuits in division Diode Circuit of Analog Circuits
Answer» The correct answer is (C) 4.3 mA Best explanation: 4.3 mA. The silicon DIODE in the circuit is forward biased. Considering a voltage DROP of 0.7 V across the diode, the voltage drop across the resistor is (5-0.7) V = 4.3 V. HENCE, Current in the circuit = Current through the resistor = (4.3/1000) A = 4.3 mA.

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