GE6252 Basic Electrical and Electronics Engineering Anna university notes
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GE6252 Basic Electrical and Electronics Engineering Anna university notes

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BASIC ELECTRICAL AND ELECTRONICSENGINEERINGGE6252UNIT I ELECTRICAL CIRCUITS AND MEASURMENTSOhm‘s Law –Kirchoff ̳s Laws –Steady State Solution of DC Circuits–Introduction to AC Circuits–Waveforms and RMS Value - Power and Powerfactor–Single Phase and Three Phase Balanced Circuits. Operating Principlesof Moving Coil and Moving Iron Instruments (Ammeters andVoltmeters).Dynamometer type Watt meters and Energy meters.

UNIT II ELECTRICAL MACHINES

Construction, Principle of Operation, Basic Equations and Applications of DCGenerators, DC Motors, Single Phase Transformer, Single Phase InductionMotor.

UNIT III SEMICONDUCTOR DEVICES AND APPLICATIONS

Characteristics of PN Junction Diode–Zener Effect - Zener Diode and itsCharacteristics - Half wave and Full wave Rectifiers–Voltage Regulation.Bipolar Junction Transistor–CB, CE, CC Configurations and Characteristics–Elementary Treatment of Signal Amplifier.

UNIT IV DIGITAL ELECTRONICS

Binary Number System–Logic Gates–Boolean Algebra–Half and FullAdders - Flip–Flops - Registers and Counters–A/D and D/A Conversion(simple concepts)

.UNIT V FUNDAMENTALS OF COMMUNICATION ENGINEERINGTypes of Signals: Analog and Digital Signals–Modulation and Demodulation:Principles of Amplitude and Frequency Modulations. Communication System:Radio, TV, Fax, Microwave, Satellite and Optical Fiber (Block DiagramApproachÂonly)

GE6252 - Basic Electrical and Electronics Engineering - Regulation 2013 - Lecture Notes -www.annauniverzity.com

UNIT IELECTRICAL CIRCUITS AND MEASURMENTSDC Circuits:A DC circuit (Direct Current circuit) is an electrical circuit that consists of anycombination of constant voltage sources, constant current sources, and resistors. In thiscase, the circuit voltages and currents are constant, i.e., independent of time. Moretechnically, a DC circuit has no memory. That is, a particular circuit voltage or currentdoes not depend on the past value of any circuit voltage or current. This implies that thesystem of equations that represent a DC circuit do not involve integrals or derivatives.If a capacitor and/or inductor is added to a DC circuit, the resulting circuit is not, strictlyspeaking, a DC circuit. However, most such circuits have a DC solution. This solutiongives the circuit voltages and currents when the circuit is in DC steady state. Moretechnically, such a circuit is represented by a system of differential equations. Thesolution to these equations usually contain a time varying or transient part as well asconstant or steady state part. It is this steady state part that is the DC solution. There aresome circuits that do not have a DC solution. Two simple examples are a constantcurrent source connected to a capacitor and a constant voltage source connected to aninductor.In electronics, it is common to refer to a circuit that is powered by a DC voltage sourcesuch as a battery or the output of a DC power supply as a DC circuit even though what ismeant is that the circuit is DC powered.Electric Current:Electric current means, depending on the context, a flow of electric charge (aphenomenon) or the rate of flow of electric charge (a quantity). This flowing electric chargeis typically carried by moving electrons, in a conductor such as wire; in an electrolyte, it isinstead carried by ions, and, in a plasma, by both. The SI unit for measuring the rate of flowof electric charge is the ampere, which is charge flowing through some surface at the rate ofone coulomb per second. Electric current is measured using an ammeter


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GE6252 Basic Electrical and Electronics Engineering - May/June 2014 Question Paper : DOWNLOAD

Regulation 13 - MayJune 2014

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