NEET Physics Semiconductor Electronics Questions Solved

The junction diode in the following circuit requires a minimum current of 1 mA to be above the knee point (0.7 V) of its I-V characteristic curve. The voltage across the diode is independent of current above the knee point. If VB = 5 V, then the maximum value of R so that the voltage is above the knee point, will be

(a) 4.3 kΩ                 (b) 860 kΩ

(c) 4.3 Ω                   (d) 860 Ω

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