Introduction to Electrical Engineering Quiz

Course Information

• Course Code: 23EEE104
• Course Title: Introduction to Electrical and Electronics Engineering
• Credits: 3 (L-T-P-C: 3-0-0-3)

Course Objectives

• Provide fundamental knowledge of electrical quantities.
• Equip students with working knowledge for analyzing DC and AC circuits.
• Enable understanding of diode, transistor, thyristor, and operational amplifier characteristics and applications.

Course Outcomes

• CO1: Understanding basic electric and magnetic circuits.
• CO2: Analyzing DC and AC circuits.
• CO3: Grasping basic principles of PN junctions and transistors.
• CO4: Analyzing basic transistor and op-amp circuits.

Program Outcomes (POs)

• Engineering knowledge, problem analysis, design/development of solutions, investigations of complex problems, modern tool usage.
• The engineer, society, and environment, ethical principles, teamwork and communication skills.
• Project management, finance, life-long learning.

Syllabus

• Unit 1: Introduction to electrical engineering, current and voltage sources, resistance, inductance, capacitance, Ohm's law, Kirchhoff's law. Series and parallel connections of R, L, C components, network analysis, generation of sinusoidal voltage. Magnetic circuits, induction. Three-phase systems, and power grids.
• Unit 2: PN Junction diodes, diode characteristics, approximations (clippers and clampers), rectifiers (half and full-wave). Zener diodes, regulators, characteristics, optoelectronic devices, bipolar junction transistor (BJT) characteristics, and transistor configurations.
• Unit 3: Field-effect transistors (FET) characteristics, thyristors (operation and characteristics), diacs, triacs, thyristor-based power control, integrated circuits (IC) 555 timer, multivibrators, operational amplifiers (op-amps) inverting and non-inverting applications, oscillators, and instrumentation amplifiers.

Textbooks

• Specific textbooks are listed.

Evaluation Pattern

• Internal: Mid-term exam (30%), continuous evaluation (20%). Components of continuous evaluation include class tests (2 nos. 10 marks each) and tutorials (2 nos., 10 marks each).
• External: End-semester exam (50%).

Lecture 1: Basic Concepts

• Structure of an atom:
  • Atoms consist of protons, neutrons, and electrons. Protons and neutrons reside in the nucleus, while electrons orbit the nucleus.
• Charge concept:
  • Electrons are loosely bound to the nucleus.
  • Removing electrons creates positive charge; adding excess electrons creates negative charge.
  • Charge on a proton = +1.602 x 10^-19 C. Charge on an electron = -1.602 x 10^-19 C.
• Electric charge principle:
  • Charge is quantized: Only multiples of the fundamental charge can exist. (1.602 x 10^-19 Coulomb)
  • Charge is conserved: Charge cannot be created or destroyed, only transferred.

Electric current and potential

• Electric current: The flow of charge through a conductor. Measured in amperes (A).
• Electric potential (voltage): The ability of a charged particle to do work. Measured in volts.
• Potential difference: Difference in electric potential between two points.
• Current flows from higher electric potential to lower electric potential.

Electrical Power and Energy

• Electric power: Rate at which electrical energy is consumed or supplied. P=VI
• Electric energy: Total energy used or supplied over a period of time. Energy= Pxt
• SI unit of energy is the joule (J); larger units for energy include kilowatt-hour (kWh).

Additional Information

• Example questions and problems related to calculating electric charge and current are provided.

Test your understanding of electrical quantities and circuit analysis with this quiz focused on the fundamentals of DC and AC circuits, diode and transistor characteristics. This quiz will challenge your knowledge of the basic principles and applications you need for a career in electrical and electronics engineering.