Knowledge in B.Tech

Power Transmission.

This document consists of introduction and description on belt drives. Open belt length derivation. Cross belt length derivation. Velocity ratio derivations. Introduction to gears, types of gears and description. Derivations. Numerical problems on belt length, velocity ratio and gears.

Oscillations and Waves.

CONTENTS I. Free Oscillations 1. Definition of SHM 2. Derivation of Equation for SHM 3. Mechanical Simple Harmonic Oscillations  Mass Suspended to Spring Oscillator 4. Complex Notation and Phasor Presentation of SHM 5. Equation of Motion for Free Oscillations 6. Natural Frequency of Oscillations 7. Numerical Problems II. Damped and Forced Oscillations 1. Theory of Damped Oscillations  Over Damping, Critical and Under Damping 2. Quality Factor 3. Theory of Forced Oscillations and Resonance 4. Sharpness of Resonance (One Example for Mechanical Resonance) 5. Numerical Problems III. Shock Waves 1. Mach Number 2. Properties of Shock Waves 3. Control Volume 4. Laws of Conservation of Mass, Momentum and Energy 5. Construction and working of Reddy Shock Tube 6. Applications of Shock Waves 7. Numerical Problems

Elastic Properties of Materials.

I. Elasticity 1. Concept of Elasticity, Plasticity, Stress, Strain, Tensile Stress, Shear Stress, Compressive Stress, Strain Hardening and Strain Softening 2. Hooke’s Law 3. Failure (Fracture/Fatigue) 4. Effect of stress, temperature, annealing and impurity on elasticity 5. Importance of Elasticity 6. Different Elastic Moduli- Young’s Modulus(Y), Bulk Modulus(K), Rigidity Modulus(n) 7. Poisson’s Ratio(σ) 8. Expression for Young’s Modulus(Y), Bulk Modulus(K), Rigidity Modulus(n) 9. Relation Between the Elastic Constants  Relation Between Shearing Strain, Elongation Strain and compression Strain  Relation Between Y, n and σ  Relation Between K, Y and σ  Relation Between K, n and Y  Relation Between K. n and σ 10. Limits of Poison’s II. Bending of Beams 1. Neutral Surface or Neutral Plane 2. Derivation an Expression for Bending Moment 3. Bending Moment of a Beam With Circular and Rectangular Cross Section 4. Derivation an Expression for Young’s Modulus Using Single Cantilever III. Torsion of Cylinder 1. Expression For Couple Per Unit Twist of a Solid Cylinder 2. Torsional Pendulum-Expression for Period of Oscillation 3. Numerical Problems.

Maxwell’s Equations, EM Waves and Optical Fibers

I. Maxwell’s Equations 1. Introduction to Vectors 2. Fundamentals of Vector Calculus 3. Divergence and Curl of Electric Field and Magnetic Field 4. Linear, Surface and Volume Integral 5. Description of Law of Electrostatics, Magnetism and Faraday’s Laws of EMI (a) Gauss’ Law in Electrostatics (Gauss Divergence Theorem) (b) Gauss Law of Electricity (Maxwell’s First Equation/Divergence Theorem) (c) Gauss’ Law of Magnetism (Maxwell’s Second Equation) (d) Faraday’s Law (Maxwell’s Third Equation) (e) Ampere’s Law (Maxwell’s Fourth Equation) (f) Biot-Savart’s Law 6. Current Density, Equation of Continuity and Displacement Current 7. Maxwell’s Equations in Vacuum II. EM Waves 1. The Wave Equation in Differential Form in Free Space 2. Plane Electromagnetic Waves in Vacuum 3. Transverse Nature of EM Waves 4. Polarization of EM waves III. Optical Fibers 1. Propagation Mechanism 2. Angle of Acceptance and Numerical Aperture 3. Modes of Propagation and Types of Optical Fibers 4. Attenuation: Causes of Attenuation & Expression For α 5. Point to Point Communication 6. Merits and Demerits 7. Numerical Problems.

Quantum Mechanics & LASER.

CONTENTS I. Quantum Mechanics 1. Introduction to Quantum Mechanics  Introduction  Planck’s Law for Energy Density 2. Wave Nature of Particles  de Broglie’s Hypothesis (De Broglie’s Concept of Matter Wave)  de Broglie’s Wavelength  de Broglie’s Wavelength - Extended to Accelerated Electron 3. Heisenberg’s Uncertainty Principle and Applications  Statement with three equations  Application of Heisenberg’s Uncertainty Principle (Non-confinement of the Electrons in the Nucleus) 4. Schrodinger’s Time Independent Wave Equation 5. Applications of Schrodinger’s Wave Equation  Particle in an One Dimensional Potential Well of Infinite Height  Eigen Values, Eigen Function & Probability Density for Ground State & First Two Excited States 6. Wave Function  Statement  Physical Significance (Probability Density-Max Born Interpretation & Normalization)  Properties of Wave Function 7. Numerical Problems II. LASER 1. Review of Spontaneous & Stimulated Processes 2. Energy Density Using Einstein’s Coefficients 3. Requisites of a Laser System 4. Condition for Laser Action 5. Principle, Construction & Working of CO2 Laser 6. Principle, Construction & Working of Semiconductor Laser 7. Applications of Lasers  Laser Range Finder (Defense)  Data Storage (Engineering) 8. Numerical Problems.

Definition and description of N Channel JFET.

DEFINITION OF JFET. CONSTRUCTION OF JFET. OPERATION OF JFET. CHARACTERISTICS OF JFET. SQUARE LAW EXPERSSION.

B. tech question papers

Examination bowers of B tech of ggsipu university. The following question papers are of physics and one of them is an entrance exam of the university for the Btech course.

Dsa notes

This files contains all topics of datastucture and algorithm's theory based and practical based , this will help you to achieve good marks in your semester's exam as well as your carrier. This subject is also important for your higher studies as well as gate preparation. Be a pro in this subject which will help in your placement session, most of company asked question from this subject. so be strong in this subject.

Coa notes

This files contains all topics of Computer organisation and architecture's theory based and practical based , this will help you to achieve good marks in your semester's exam as well as your carrier. This subject is also important for your higher studies as well as gate preparation. Be a pro in this subject which will help in your placement session, most of company asked question from this subject. so be strong in this subject.

auto cad

notes for auto cad it contains all the important topics of auto cad like commands , tools , advantages , disadvantages, uses , why auto cad is more efficient than manual drawing, different softwares used for auto cads and comparison between them and disadvantages of the software , common softwares used in auto cad, editing commands used in auto cad , drawing commands used in auto cad, how to draw a circle , polygon , line using auto cad software refer the pdf for complete auto cad notes required in engineering drawing in btech first year pdf made by the faculty of lakshmi narain college of technology (LNCT) published on viden by shivansh nigam student of LNCT second year branch electronics and communication

German (FBL) Previous Year Question Paper for Amity Students.

Germany officially the Federal Republic of Germany (German: Bundesrepublik Deutschland, About this soundlisten (help·info)),[g] is a country in Central and Western Europe, lying between the Baltic and North Seas to the north, and the Alps, Lake Constance and the High Rhine to the south. It borders Denmark to the north, Poland and the Czech Republic to the east, Austria and Switzerland to the south, France to the southwest, and Luxembourg, Belgium and the Netherlands to the west.

French (FBL) Previous Year Question Paper for Amity Students.

French is a Romance language of the Indo-European family. It descended from the Vulgar Latin of the Roman Empire, as did all Romance languages. French evolved from Gallo-Romance, the spoken Latin in Gaul, and more specifically in Northern Gaul. Its closest relatives are the other langues d'oïl—languages historically spoken in northern France and in southern Belgium, which French (Francien) has largely supplanted. French was also influenced by native Celtic languages of Northern Roman Gaul like Gallia Belgica and by the (Germanic) Frankish language of the post-Roman Frankish invaders. Today, owing to France's past overseas expansion, there are numerous French-based creole languages, most notably Haitian Creole. A French-speaking person or nation may be referred to as Francophone in both English and French.