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- It appears that when the applied voltage is switched on, both the diodes will turn ?on?. But that is not so. When voltage is applied, germanium diode (V0 = 0.3 V) will turn on first and a level of 0.3 V is maintained across the parallel circuit. The silicon diode never gets the opportunity to have 0.7 V across it and, therefore, remains in open-circuit state as shown in Fig. 3.13 (ii).
Therefore, VA = 20 - 0.3 = 19.7 V
Wilfykil answered the question on August 14, 2019 at 08:37
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