Semi Conductor

---

---

Q1:-The Ge crystal behave as an insulator at

1. 0 k
2. 273 k
3. 5 k
4. none of these 

ANSWER:- 1

---

---

Q2:-In a full wave rectifier the diode conduct for 

1. one half cycle
2. full cycle
3. alternate half cycle 
4. none of these

ANSWER:-3

---

---

Q3:-The maximum efficiency of half wave rectifier is 

1. 33.33 %
2. 40.6 %
3. 50 %
4. 68 %

ANSWER:-2

---

---

Q4:-The  peak inverse voltage in case of a bridge rectifier circuit for each diode is 

1. Em
2. 2 Em
3. 3 Em
4. 4 Em

ANSWER:-1

---

---

Q5:- Peak inverse voltage for a full waver rectifier is peak value of input voltage 

1. Em
2. 2Em
3. 3Em
4. 4Em

ANSWER:-2

---

---