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Course Overview

  • Course Title: Tunua Mnxavikwv KaI HAEKTPOVIKWV HAEKTPONIKH OYEIKH

  • Instructor: AIEONEE FIANEIHITHMIO

  • Email: imarm@ihu.gr

  • Credits: 6 ECTS


Course Content

  • Electric Charge and Electric Field

    • Electric Charge

    • Electric Field, Gauss's Law

    • Electric Potential

    • Capacitance, Dielectrics

    • Storage of Electric Energy

  • Electric Current and Resistance

  • Magnetism

    • Sources of Magnetic Field

    • Electromagnetic Induction and Faraday's Law

    • Induction

  • Electromagnetic Oscillations

  • Maxwell's Equations

  • Electromagnetic Waves

  • Light: Reflection and Refraction, Snell's Law

  • Wave Nature of Light: Interference, Diffraction, Huygens' Principle, Polarization

  • Quantum Theory: Initial Concepts, Atomic Models, Basics of Quantum Mechanics

  • Quantum Mechanics of Atoms, Molecules, and Solids

  • Nuclear Physics: Radiation, Nuclear Energy: Effects and Use of Radiation


Assessment Criteria

  • Final Written Examination: May include:

    • Short Answer Questions

    • Multiple Choice Tests

    • Problem Solving


Textbooks

  1. Giancoli, C. Douglas, "Physics for Scientists and Engineers", Volume B, 4th Edition, 2014, ISBN: 978-960-418-376-0

  2. R. Knight, "Physics for Scientists and Engineers", Volume II, 2010, ISBN: 978-960-319-306-7

  3. Hans C. Ohanian, "Physics", Volume B, 2nd Edition, 1991, ISBN: 978-960-266-459-9

  4. R. Serway & J. Jewett, "Physics for Scientists and Engineers, Electricity and Magnetism, Light and Optics, Modern Physics", 8th Edition, 2013, ISBN: 978-960-461-509-4

  5. Halliday, David, Resnick, Robert, Walker, Jearl, "Physics", Volume B, 2013, ISBN: 978-960-01-1594-9


Electric Charge and Electric Field

  • Electric Fields:

    • Present everywhere but invisible.

    • Responsible for electric currents in solids.

    • Source of electric fields: electrically charged particles.

    • Fundamental Forces of Nature:

      • Gravitational

      • Electromagnetic

      • Strong Nuclear

      • Weak Nuclear


Electric Charge

  • Static Electricity: Phenomena of stationary charges.

  • Two types of electric charges: Positive & Negative.

  • Law of Conservation of Electric Charge:

    • Electric charge cannot be created or destroyed.

  • Opposite charges attract, like charges repel.


Atomic Scale of Electric Charge

  • Understanding atomic structure leads to understanding electricity.

  • Charged particles in atoms:

    • Electrons: Negatively charged.

    • Protons: Positively charged.

    • Neutrons: Neutral.

  • Movement of electrons creates charged ions.


Conductors, Insulators, and Semiconductors

  • Conductors: Facilitate movement of electric charge easily.

  • Insulators: Do not allow electric current to flow.

  • Semiconductors: Intermediate conductivity, significant for electronics industry.


Coulomb's Law

  • Force F between two point charges Q1 and Q2 at a distance r:

    • F = k * (Q1 * Q2) / r^2

  • k = Coulomb's constant (8.99 x 10^9 N m²/C²).

  • Electric charge is quantized; elementary charge (electron) e = 1.602 x 10^-19 C.


Using Coulomb's Law

  • Applies only to:

    • Point charges

    • In electrostatics (stationary charges)

  • Electric forces can be vectorially added.


Electric Field Concept

  • Electric fields exert force at a distance, defined mathematically.

  • Surroundings of charges modify the space.

  • Total electric field is the vector sum of the fields produced by individual charges.


Electric Field Lines

  • Visual representation of electric fields:

    • Direction of field lines indicates direction of force on a positive charge.

    • Field lines emanate from positive charges and terminate on negative charges.

    • Density of lines indicates the strength of the electric field.


Applications of Electric Fields

  • Electric field influences electron movement in conductors, impacting their equilibrium state.

  • Electromagnetic shielding protects electronic systems from external influences.


Motion of Charged Particles in Electric Field

  • Charged particles experience force proportional to the electric field:

    • F = qE

  • Motion can be described with kinematic equations.

  • Example: Electron acceleration in a parallel plate capacitor.

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