Useful Formula's - Semiconductor devices

FAQs

1. What is a) Current b)Voltage c) Resistance?
Ans: a) Flow of electric charge in a medium b)Energy carried by the charge c) Force that opposes the flow of electric charge
2. What are active and passive elements?
Ans: Active elements are capable of delivering power, while passive elements are capable of receiving, and possibly storing, power.
3. What is the difference between ac and dc current?
Ans: In DC(Direct current), the electrons flow steadily in a single direction, or "forward." In AC (Alternating Current), electrons keep switching directions, sometimes going "forwards" and then going "backwards."
4. What is a Spectrum?
Ans: Range of all possible frequencies of electromagnetic radiation.
5. What is a filter?
Ans: A circuit designed to selectively filter a frequency or a range of frequencies is called a filter.
6. What is dependent and independent source?
Ans: A dependent source maintains an output (fixed or varying with time) which is affected by any other quantity.
An independent source  maintains an output (fixed or varying with time) which is not affected by any other quantity.
7. What is Power and What is its relation to Current and voltage?
8. What is the difference between voltage and induced e.m.f.?
9. What is a) Ohms law b) KVL
c) KCL d) Thevenins Theorem
e) Nortons Theorem f) Superposition Theorem?
Ans:
a) Ohms law states that the voltage is directly proportional to current, the proportionality constant being resistance. (V= I.R)
b) KVL states that the algebraic sum of the voltages between successive nodes in a closed path in a circuit is equal to zero.
c) KCL states that the algebraic sum of the currents in all the branches that converge in a common node is equal to zero.
10. What is the difference between series and parallel connection?
11. What is resistivity?
Ans: Resistivity = (Resistance x Cross-sectional area)/ Length

ρ = R.A/L

Electronics and Communication Engineering Reference Books

Networks:

Network Analysis VanValkenburg
Engineering Circuit Analysis Hayt & Kemmerly
Electric Circuits by Joseph A. Edminister
Fundamentals of Electric Circuits – Sadiku

Electronic devices:

Integrated electronics by Milman Halkias
Electronic Principals by Malvino
Micro Electronic Circuits by Sedra & Smith
Electronic Devices and Circuits by David A Bell
Electronic Devices And Circuits by Boylestead
Solid State Electronic Devices by Benjamin G Streetman

Analog Circuits:

Integrated Electronics by Millman and Halkias
Electronic devices and circuits by Boylestad and Nashelsky
Electronic devices and circuits by Millman and Halkias
Microelectronics by Millman and Grabel
Analog Circuits by Sedra and smith
Linear ICs and integrated circuits by Gaekwad

Signals and Systems:

Signal and Systems Simon Haykin
DSP by Proakis and Manolkis
Signals and Systems by Oppenheim and Schaffer
Signals and systems by B.P.Lathi

Digital Circuits:

Digital Electronics by Morris Mano
Microprocessor by Ramesh Gaonkar
Digital Principles and Design by Donald Givone
Digital Circuits by Taub and Shilling
Digital Electronics by Salivahanan

Electromagnetics:

Engineering Electromagnetics by William Hayt
Elements of Electromagnetics by Mathew Sadiku
Electromagnetic waves and Radiating system by Jordan and Balmein
Electromagnetics by K.D.Prasad
Microwave devices and circuits by Liao
Schaum Series for solved problems

Communications:

Communication System by Simon Haykin
Principles of Communication system by Taub and Schilling
Schaum series for solved problems
Modern and Digital Communication system by B.P. Lathi

MIT Lectures on Single variable Calculus

Lecture 1:
Definition of Derivative

Lecture 2:
Limits and Continuity

Lecture 3:
Derivatives

Lecture 4:
Chain Rule

Lecture 5:
Implicit Differentiation

Lecture 6:
Exponential and Log

Lecture 7:
Hyperbolic Functions

Lecture 9:
Linear and Quadratic Approximations

Lecture 10:
Curve Sketching

Lecture 11:
Max-Min

Lecture 12:
Related-Rates

Lecture 13:
Newtons-Method

Lecture 14:
Mean-Value Theorem

Formula's- Basic electronics

Ohm's Law:
For Resistance:(R)ohms
V = I.R Volts
R = V/I Ohms
I = V/R Amperes

For Inductance:

V = L.(di/dt)

For Capacitor:
I = C.(dv/dt)

Lead out Loud