1.

Ge and Si diodes start conducting at 0.3V and 0.7V respectively. In the following figure if Ge diode connection are reversed, the value of V0 changes by: (assume that the Ge diode has large breakdown voltage)(1) 0.6V (2) 0.8V (3) 0.4V (4) 0.2V 

Answer»

The correct option (3) 0.4 V

Explanation:

Initiall current will flow through Ge diode drop will be 0.3v.

In the second case, Si diode wll conduct and drop across the combination is 0.7v. so, change in Voltage =0.4V 



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