Syllabus (PHYSICS)

Course Type: SEC-1

Semester: 1

Course Code: BPHSSEC01C

Course Title: Electrical Circuits and Network Skills

(L-P-Tu): 2-1-0

Credit: 3

Practical/Theory: Combined

Course Objective: The objective of this course is to help the student to diagnose the electrical and electronic circuit problem.

Learning Outcome: Upon completion of the course, students will 1. develop an understanding of the fundamental laws and elements of electrical circuits. 2. learn the energy properties of electric elements and the techniques to measure voltage and current. 3. develop the ability to apply circuit analysis to DC and AC circuits.

Theory

Basic Electricity Principles

Voltage, Current, Resistance, and Power. Ohm's law. Series, parallel, and series-parallel combinations. AC Electricity and DC Electricity. Familiarization with multimeter, voltmeter and ammeter. (4 Lectures)

Understanding Electrical Circuits

Main electric circuit elements and their combination. Rules to analyze DC sourced electrical circuits. Current and voltage drop across the DC circuit elements. Single-phase and three-phase alternating current sources. Rules to analyze AC sourced electrical circuits. Real, imaginary and complex power components of AC source. Power factor. Saving energy and money. (4 Lectures)

Electrical Drawing and Symbols

Drawing symbols. Blueprints. Reading Schematics. Ladder diagrams. Electrical Schematics. Power circuits. Control circuits. Reading of circuit schematics. Tracking the connections of elements and identify current flow and voltage drop. (4 Lectures)

Generators and Transformers

DC Power sources. AC/DC generators. Inductance, capacitance, and impedance. Operation of transformers. (4 Lectures)

Solid-State Devices

Resistors, inductors and capacitors. Diode and rectifiers. Components in Series or in shunt. Response of inductors and capacitors with DC or AC sources. (4 Lectures)

Electrical Protection

Relays. Fuses and disconnect switches. Circuit breakers. Overload devices. Ground-fault protection. Grounding and isolating. Phase reversal. Surge protection. Interfacing DC or AC sources to control elements (relay protection device) (4 Lectures)

Electrical Wiring

Different types of conductors and cables. Basics of wiring-Star and delta connection. Voltage drop and losses across cables and conductors. Instruments to measure current, voltage, power in DC and AC circuits. Insulation. Solid and stranded cable. Conduit. Cable trays. Splices: wirenuts, crimps, terminal blocks, split bolts, and solder. Preparation of extension board. (6 Lectures)

Practical

Practical part will be based upon the modules, covered in the theory part.

Reading References:

1. A text book in Electrical Technology - B L Theraja & A K Thereja, S Chand & Co.

2. Electric Machinery Fundamentals by Stephen Chapman.

3. Performance and design of AC machines - M G Say, ELBS Edn.

4. Theory and Performance of Electrical Machines, J B Gupta