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PY212 Electricity and Magnetism

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Demonstration of Electrostatic Effects. The Electric Charge ... Huygens' Principle and Coherence. Interference. Double Slit. Thin Film. Diffraction. Single Slit ... – PowerPoint PPT presentation

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Title: PY212 Electricity and Magnetism


1
PY212 Electricity and Magnetism
  • I. Electrostatics

2
I-1 Electric Charge
  • Why Electrostatics?
  • Demonstration of Electrostatic Effects.
  • The Electric Charge and its Properties.
  • The Coulombs Law.
  • Some Applications of the C. L.
  • Electric Field and Electric Intensity

3
I-2 Gauss Law
  • The Electric Flux.
  • The Gauss Law.
  • The Charge Density.
  • Use the G. L. to calculate the field of a
  • A Point Charge
  • An Infinite Uniformly Charged Wire
  • An Infinite Uniformly Charged Plane
  • Two Infinite Charged Planes

4
I-3 Electric Potential
  • Conservative Fields.
  • The Existence of the Electric Potential.
  • Work done on Charge in Electrostatic Field.
  • Relations of the Potential and Intensity.

5
I-4 Electric Fields
  • Relation of the Potential and Intensity
  • The Gradient
  • Electric Field Lines and Equipotential Surfaces.
  • Motion of Charged Particles in Electrostatic
    Fields.

6
I-5 Special Electrostatic Fields
  • Electric Charge and Field in Conductors.
  • The Field of the Electric Dipole.
  • Behavior of E. D. in External Electric Field.
  • Examples of Some Important Fields.

7
I-6 Capacitance and Capacitors
  • An Example of Storing a Charge.
  • Capacity x Voltage Charge.
  • Various Types of Capacitors.
  • Capacitors in Series.
  • Capacitors in Parallel.

8
I-7 Electric Energy Storage and Dielectrics
  • Electric Energy Storage.
  • Inserting a Conductor into a Capacitor.
  • Inserting a Dielectric into a Capacitor.
  • Microscopic Description of Dielectrics
  • Concluding Remarks to Electrostatics.

9
II. Electro-kinetics
  • Stationary Electric Currents

10
II1 Ohms Law
  • Charges Move - Electric Currents
  • Power Sources
  • The Ohms Law
  • Resistance and Resistors
  • Transfer of Charge, Energy and Power

11
II2 Microscopic View of Electric Currents
  • The Resistivity and Conductivity.
  • Conductors, Semiconductors and Insulators.
  • The Speed of Moving Charges.
  • The Ohms Law in Differential Form.
  • The Classical Theory of Conductivity.
  • The Temperature Dependence of Resistivity

12
II3 DC Circuits I
  • Resistors in Series and Parallel.
  • Resistor Networks.
  • General Topology of Circuits.
  • Kirchhoffs Laws Physical Meaning.
  • The Use of the Kirchhoffs Laws.
  • The superposition principle.
  • The Use of the Loop Currents Method.

13
II4 DC Circuits II
  • Real Power Sources.
  • Building DC Voltmeters and Ammeters.
  • Using DC Voltmeters and Ammeters.
  • Wheatstone Bridge.
  • Charging Accumulators.
  • The Thermocouple.

14
III. Magnetism
  • Fields produced mostly by moving charges acting
    on moving charges.

15
III1 Magnetic Fields
  • Introduction into Magnetism.
  • Permanent Magnets and Magnetic Fields.
  • Magnetic Induction.
  • Electric Currents Produce Magnetic Fields.
  • Forces on Electric Currents.

16
III2 Magnetic Fields Due to Currents
  • Forces on Moving Electric Charges
  • Biot-Savart Law
  • Amperes Law.
  • Calculation of Some Magnetic Fields.

17
III3 Magnetic Dipoles
  • Magnetic Dipoles
  • The Fields they Produce
  • Their Behavior in External Magnetic Fields
  • Calculation of Some Magnetic Fields
  • Solenoid
  • Toroid
  • Thick Wire with Current

18
III4 Application of Magnetic Fields
  • Applications of Lorentz Force
  • Currents are Moving Charges
  • Moving Charges in El. Mag.
  • Specific charge Measurements
  • The Story of the Electron.
  • The Mass Spectroscopy.
  • The Hall Effect.
  • Accelerators

19
III5 Magnetic Properties of Materials
  • Introduction to Magnetic Properties
  • Magnetism on the Microscopic Scale.
  • Diamagnetism.
  • Paramagnetism.
  • Ferromagnetism.

20
IV. Electromagnetic Induction
  • Further relations between electric and magnetic
    fields

21
IV1 Faradays Law
  • Introduction into Electro-magnetism.
  • Faradays Experiment.
  • Moving Conductive Rod.
  • Faradays Law.
  • Lenzs Law.
  • Examples

22
IV2 Inductance
  • Transporting Energy.
  • Counter Torque, EMF and Eddy Currents.
  • Self Inductance
  • Mutual Inductance

23
IV3 Energy of Magnetic Field
  • Transformers
  • Energy of Magnetic Field
  • Energy Density of Magnetic Field
  • An RC Circuit
  • An RL Circuit
  • An RLC Circuit - Oscilations

24
V. Alternating Currents
  • Voltages and currents may vary in time.

25
V1 Alternating Voltages and Currents
  • Introduction into Alternating Currents.
  • Mean Values
  • Harmonic Currents.
  • Phase Shift

26
V2 AC Circuits
  • Power in AC Circuits.
  • R, L and C in AC Circuits. Impedance.
  • Description using Phasors.
  • Generalized Ohms Law.
  • Serial RC, RL and RLC AC Circuits.
  • Parallel RC, RL and RLC AC Circuits.
  • The Concept of the Resonance.

27
VI. Electromagnetic Waves
  • All the important physics in electromagnetism can
    be expressed in Maxwells Equations with
    interesting consequences.

28
VI1 Maxwells Equations
  • Generalized Ampères Law.
  • Maxwells Equations.
  • Production of Electromagnetic Waves.
  • Electromagnetic Waves Qualitatively.

29
VI2 Electromagnetic Waves
  • Properties of Electromagnetic Waves
  • Relations of E and B.
  • The speed of Light c.
  • Energy Transport S.
  • Radiation Pressure P.

30
VII. Optics
  • Originally Properties and Use of Light.
  • Now Much More General.

31
VII1 Introduction into Geometrical Optics
  • Introduction into Optics.
  • Margins of Geometrical Optics.
  • Fundamentals of Geometrical Optics.
  • Ideal Optical System.
  • Fermats Principle.
  • Reflection and Reflection Optics.

32
VII2 Basic Optical Elements and Instruments
  • Refraction, Dispersion and Refraction Optics.
  • Thin Lenses. Types and Properties.
  • Combination of Lenses.
  • Basic Optical Instruments
  • Human Eye
  • Magnifying Glass
  • Telescope
  • Microscope

33
VII3 Introduction into Wave Optics
  • Huygens Principle and Coherence.
  • Interference
  • Double Slit
  • Thin Film
  • Diffraction
  • Single Slit
  • Gratings
  • X-Rays, Bragg Equation.
  • Wave Limits of Geometrical Optics.

34
Maxwells Equations I
  • .

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