Q. Ge and Si diodes start conducting at 0.3 V and 0.7 V respectively. In the following figure if Ge diode connection are reversed, the value of $V_o$ changes by : (assume that the Ge diode has large breakdown voltage)

Physics Question Image


Initially Ge & Si are both forward biased so current will effectivily pass through Ge diode with a drop of 0.3 V
if "Ge" is revesed then current will flow through "Si" diode hence an effective drop of (0.7 - 0.3) = 0.4 V is observed.

You must select option to get answer and solution

Questions from JEE Main 2019

Physics Most Viewed Questions

8. The spectrum of an oil flame is an example for ...........

KCET 2010 Dual Nature Of Radiation And Matter