In the given circuit, D1 is an ideal germanium diode and

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In the given circuit, D₁ is an ideal germanium diode and D₂ is a silicon diode having its cut-in voltage as 0·7 V, forward resistance as 20 Ω and reverse saturation current (I_s) as 10 nA. What are the values of I and V for this circuit, respectively?

1. 60 mA and 0 V
2. 50 mA and 0 V
3. 53 mA and 0·7 V
4. 44 mA and 1·58 V

Correct Option: A

The given circuit (i.e., fig-1)
Given D₁ → Ideal Germanium diode D₂ → Silicon diode with
V_r = 0·7V and
V_f = 20Ω and I0 = 10 nA
The equivalent circuit of the given circuit using given information can be redrawn as(i.e., fig-2)

From above circuit, V = 0V and I =	V	log_e e
	2V_T

Hence alternative (A) is the correct choice.