Ge and Si diodes start conducting at 0.3 V and 0.7 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)
a.
0.6 V
b.
0.8 V
c.
0.4 V
d.
0.2 V
a.
0.6 V
b.
0.8 V
c.
0.4 V
d.
0.2 V
Question ID - 50112 | SaraNextGen Top Answer Ge and Si diodes start conducting at 0.3 V and 0.7 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)
a.
0.6 V
b.
0.8 V
c.
0.4 V
d.
0.2 V
Ge and Si diodes start conducting at 0.3 V and 0.7 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)
|
a. |
0.6 V |
b. |
0.8 V |
|
c. |
0.4 V |
d. |
0.2 V |
1 Answer
127 votes
Answer Key / Explanation : (c) -
Initially Ge & Si are both forward biased so current will effectively pass through Ge diode with a drop of 0.3V with a drop of 0.3V if “Ge” is reversed then current will flow through “Si” diode hence an effective drop of (0.7 – 0.3) = 0.4 V is observed.
127 votes
Answer Link
127