# 3rd semester electrical engineering! ELECTRICAL ENGINEERING !Jharkhand polytechnic

#3rd_semester_ electrical_ engineering

#3rd electrical_ engineering

#electricalengineeringfundamentals

@ELECTRICAL ENGINEER .

electrical engineering fundamentals

electrical potential ,electrical potential difference, electric power

all competitive exam sscje drdo sail pgcil ntpc railway je iocl uppcl sscje Ongc etc

3dr semester one by one all chapter solve

.#3rd_semester_eletrical_engineering

#3rd_semester_eletrical_engineering_fundamentals

3rdsemester Electrical engineering.

Electrical engineering fundamentals.

Electrical engineering

3rd semester polytechnic student

3rd semester electrical engineering .

@all competitive exam junior electrical engineer drdo sail pgcil ntpc railway je iocl uppcl sscje Ongc.

electric field , electric charge current

# electrical engineering fundamentals.

electrical engineering fundamentals

one by one chapter solution concept ke sat

Electrical Engg Fundamentals

Introduction to electrical circuits: Electric field, electric current, potential and

potential difference, electric power, basic circuit components, ohm’s law.

Sources and its types, Ideal and practical sources, Source Conversion,

independent and dependent sources, Energy Stored in Inductor and Capacitor,

series, parallel and series and parallel circuit.

2. DC Networks & Theorems:

Laws and Theorems applicable to DC networkks (KCL & KVL, Node

voltage & Mesh current analysis, Star-Delta and Delta-Star conversion,

Superposition theorem, Thevenin & Norton theorem & Maximum power

Transfer theorem), Simple problems.

3. AC Fundamentals

Single-Phase AC Circuits: Single-phase EMF Generation, Average and

Effective value of periodic ac signals, Peak factor & Form factor, Phasor and

Complex representation of sinusoids, Power factor, complex power.

Three-Phase AC Circuits: Comparison between single-phase and three-phase

systems, three phase EMF Generation, Line and Phase quantities in star and

delta networks,

4. Magnetic circuits

Introduction to Magnetic Circuits: Introduction to Electromagnetism, Faradays

laws of Electromagnetic Inductions, B-H curve, Permeability, Reluctance,

Solution of magnetic circuits, Hysteresis and Eddy current loss.

5. Single Phase A.C. Circuits (5 hours)

A.C. Circuits containing resistance only, A.C. Circuits containing

inductance only, A.C. Circuits containing Capacitance only, R-L Series

circuits, R-C series circuits, R-L-C Series circuits, Simple Numerical

problems.

6. Parallel A.C. Circuits

R-L,R-CandR-L-C circuits. Admittance, susceptance, solution by

admittance method, phasor diagram, Parallel resonance, quality factor.

Comparison of Series and parallel Circuits

List of Experiments:

1. Verification of Ohm’s laws

2. Verification Kirchoffs laws

3. Verification of superposition Theorem.

4. Verifications of Thevenin’s and Norton’s theorem.

5. Verifications of Maximum power transfer theorem.

6. Connection and measurement of power consumption of various lamps.

7. Measurement of resonant frequency of Tank Circuits.

8. V-I Characteristics of incandescent lamps and time fusing current

characteristics of a fuse.

9. Calculation of current, voltage and power in series R-L-C circuit excited by

single phase AC supply and calculation of power factor.

10. Verifying B-H Curve of an Electromagnet.