Tuesday, July 12, 2016

C Language QUESTION Theory Set :


set1:  CLICK
set2:  CLICK
set3: CLICK






Basic Electronics Set 2

1. Operation of a pnp transistor,  npn transistor
2. Basic circuit for using a pnp transistor as an amplifier
3. Why this is called bipolar transistor?
4.Why this is called current controlled device?
5. Emitter follower.
6. Common-base, common-emitter and common-collector amplifiers
7. Relationship between α and β.
8. Load line analysis,Q-point
9. Describe the operation of a transistor amplifier in CE configuration.
10.Differentiate between FET and BJT transistors.
11. What is the use of biasing? Draw the DC equivalent model.
12. Thermal Runaway, thermal resistance
13.  Draw a BJT fixed bias circuit and derive the expression for the stability factor ‘S’.
14.Advantages and  disadvantages of fixed bias circuit
15. what is the condition for thermal stability?
16. Explain thermal instability. What are the factors affecting the stability factor?

Monday, July 11, 2016

Basic Electronics Set 1

1. Conductor , insulator , semiconductor - definition, example.
2. Valence band, conduction band, band gap
3.  Intrinsic semiconductor, extrinsic semiconductor, doped semiconductors,doping
4. Hole,doping,Recombination
5. Diffusion and drift, drift current
6. filter,rectifier
7. Characteristics graph of forward biasing,reverse biasing
8.avalanche break down,Zener break down
9. LED
10.Depletion region
11.Diode current equation
12. Half wave rectifier
13.full wave rectifier-center trap,bridge rectifier(with filter and with out filter)
13. ripple factor,PIV,Load current,rectifier efficiency
14. Characteristics of Zener diode
15. Diode as a voltage regulator