# Electromagnectic Fields

Course Code:RT21025

Author:uLektz

University:

Regulation:2013

Categories:Electrical & Electronics

Format : ePUB3 (DRM Protected)

Type :eBook

Rs.199 Rs.30 Rs.85% off

Description :Electromagnectic Fields of RT21025 covers the latest syllabus prescribed by JNTU Kakinada for regulation 2013. Author: uLektz, Published by uLektz Learning Solutions Private Limited.

Note : No printed book. Only ebook. Access eBook using uLektz apps for Android, iOS and Windows Desktop PC.

##### Topics
###### Unit – I Electrostatics

1.1 Electrostatic Fields – Coulomb’s Law

1.2 Electric Field Intensity (EFI) – EFI due to a line and a surface charge – Work done in moving a point charge in an electrostatic field

1.3 Electric Potential – Properties of potential function – Potential gradient

1.4 Guass’s law –– Maxwell’s first law, div ( D )=ρv Laplace’s and Poison’s equations and Solution of Laplace’s equation in one variable

###### Unit – II Conductors – Dielectrics and Capacitance

2.1 Electric dipole – Dipole moment – potential and EFI due to an electric dipole

2.2 Torque on an Electric dipole in an electric field – Behaviour of conductors in an electric field – Conductors and Insulators Polarization

2.3 Boundary conditions between conduction to Dielectric and dielectric to dielectrics capacitance – capacitance of parallel plates, spherical and coaxial cables with composite dielectrics

2.4 Energy stored and energy density in a static electric field – Current density – conduction and Convection current densities

2.5 Ohm’s law in point form – Equation of continuity

###### Unit – III Magneto statics and Ampere’s Law

3.1 Static magnetic fields – Biot-Savart’s law – Oesterd’s experiment

3.2 Magnetic field intensity (MFI) – MFI due to a straight current carrying filament – MFI due to circular, square and solenoid current – Carrying wire

3.3 Relation between magnetic flux, magnetic flux density and MFI – Maxwell’s second Equation, div(B)=0

3.4 Ampere’s circuital law and its applications viz. MFI due to an infinite sheet of current and a long filament carrying conductor – Point form of Ampere’s circuital law

3.5 Field due to a circular loop, rectangular and square loops, Maxwell’s third equation, Curl (H)=J.

###### Unit – IV Force in Magnetic fields

4.1 Magnetic force - Moving charges in a Magnetic field – Lorentz force equation

4.2 Force on a straight and a long current carrying conductor in a magnetic field – Force between two straight long and parallel current carrying conductors

4.3 Magnetic dipole and dipole moment – a differential current loop as a magnetic dipole

4.4 Torque on a current loop placed in a magnetic field

###### Unit – V Self and Mutual inductance

5.1 Self and Mutual inductance

5.2 Determination of self-inductance of a solenoid and toroid and mutual inductance between a straight long wire and a square loop wire in the same plane

5.3 Energy stored and density in a magnetic field.

###### Unit – VI Time Varying Fields

6.1 Time varying fields – Faraday’s laws of electromagnetic induction – Its integral and point forms

6.2 Maxwell’s fourth equation, Curl (E)=-∂B/∂t – Statically and Dynamically induced EMFs – Simple problems -Modification of Maxwell’s equations for time varying fields – Displacement current

6.3 Poynting Theorem and Poynting vector