I Internal Test - Analog Electronics

Analog Electronics - 7BPH5C1

I Internal Test

Time : 2.5 Hrs                                                                                                                                     Marks: 60

                                                                        PART - A                                                        5 x 2 = 10

1.What are extrinsic semiconductors?

2.What is a crystal diode? 

3.Define ripple factor. 

4.Define current gain of a transistor in CC mode.

5.Define operating point of a transistor.

                                                                       PART - B                                                      4 x 5 = 20

1. Describe the working of a Zener voltage regulator.
2. Derive relation between alpha and beta.
3. Compare the characteristics of transistors connected in CB,CE and CC mode.
4. Compare different types of coupling in multistage amplifier.

                                                                         PART - C                                                    3 x 10 =30

1.Describe the working of a full wave bridge rectifier.
2.Explain the Voltage Divider Bias method for biasing a transistor.
3.Describe the working of a single stage CE amplifier with a neat diagram.