Question

In a p-n junction diode, the current I can be expressed as eV I = I₀ exp(eV/2Kᵦ+T) where I₀ is called the reverse saturation current, V is the voltage across the diode and is positive for forward bias and negative for reverse bias, and I is the current through the diode, Kᵦ is the Boltzmann constant (8.6 10 eV/K) and T is the absolute temperature. If for a given diode I₀ = 5 X10 A and T = 300 K, then (a) What will be the forward current at a forward voltage of 0.6 V? (b) What will be the increase in the current if the voltage across the diode is increased to 0.7 V? (c) What is the dynamic resistance? (d) What will be the current if reverse bias voltage changes from 1 V to 2 V?

Answer 1

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