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EC2151 Electric Circuits & Electron Devices Nov / Dec 2013 Important Questions
#1






Anna University

Department of
Electronics
and Communication
Engineering

EC2151 -Electric Circuits And Electron Devices

Second Semester

Nov / Dec 2013 Important
Questions

Regulation 2008



UNIT 1

[sum is important]

1)Find voltage and power
2)Ohms law sum
3)Rule
KVL and KCL
4)Mesh or Nodal analysis?
5)Theorems
Superposition Theorem,
Norton’s Theorem, Maximum Power, transfer Theorem, Thevenins theorem.

UNIT 2

[sum is more important]

1.Explain superposition theorem?
2. Draw the phasor diagram And derive RLC,RC,RL Circuits.
3. Derive Equations of single tuned circuit double tuned circuit

UNIT 3

1. Write about N type & P type semiconductors with examples.
2. Write Diode current equation?
3. Draw and explain energy band structure of pn junction diode
4. Explain Zener diode and its VI characteristics?
5. Draw and explain energy band diagram of intrinsic semiconductor and Extrinsic semiconductor ?


UNIT 4

1. Draw and explain PNP NPN transistor
2.Explain with neat diagrams BJT , FET?
3. Write about n channel and p channel JFET .
4. Explain MOSFET?


UNIT 5

1. Explain holding current & latching current.
2.Write the Comparision of TRIAC and DIAC.
3. Explain UJT?
4. Write principle And Operation of LED and LCD,photodiode
5.Explain SCR?
6 Write about tunneling effect,tunnel diode.

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