Why common-collector circuit is known as an emitter follower?

1147

---

Define what happens to the conductivity of semiconductor with the rise in temperature? Compare with the conductivity of metals.

1153

---

Explain what is reverse saturation current?

1196

---

Why transistor is called current controlled device?

1328

---

What is the ratio of majority and minority carriers in intrinsic and extrinsic semiconductors?

1268

---

Define cut-in voltage of a p-n junction diode?

1202

---

The output of a 60hz full-wave bridge rectifier has a 60 hz ripple. It this circuit working properly?

1374

---

Name the breakdown mechanism in a lightly doped p-n junction under reverse biased condition.

1335

---

Define peak inverse voltage?

1157

---

Which device produces voltage variable capacitor?

1086

---

What is cut-off frequency?

1204

---

Define what is engineering?

1182

---

Define what do you mean by donor and acceptor impurities?

1122

---

Define a hole in a semiconductor.

1106

---

Define what do you understand by reverse saturation current of a diode?

1173

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