Define what is the effect of temperature on extrinsic semiconductor?

1151

---

Why doping is done in semiconductors?

1164

---

Why the current in power diode varies linearly rather than exponentially with voltage?

1298

---

What is transistor biasing?

1055

---

Explain what are the two mechanisms of breakdown in a p-n junction?

1245

---

Define why series inductor and l-section filters cannot be used with half-wave rectifiers?

1115

---

What is back diode?

1077

---

What do you mean by drift velocity and mobility of a free electron?

1026

---

What is the main factor for controlling the thermal generation and recombination?

1264

---

What do you understand by reverse saturation current of a diode?

1042

---

Define what are the main purposes for which a cc amplifier may be used.

1134

---

Different types of communications? Explain.

1074

---

What happens when an ammeter is connected across the circuit?

1096

---

The electric field in the space charge region decreases with forward bias and increases with reverse bias. Why?

1105

---

What is the purpose of bleeder resistance in a rectifier circuit using l-c filter?

1106

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