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THE ELECTROMAGNETIC MODEL - Coggle Diagram
THE ELECTROMAGNETIC MODEL
WHAT IS ELECTROMAGNETICS ?
ELECTROMAGNETICS IS A BRANCH OF PHYSICS WHICH STUDIES THE ELECTRIC AND MAGNETIC PHENOMENA OF ELECTRIC CHARGES.
THE CENTRAL THEME OF THE STUDY IS THE INTERACTION BTW ELECTRIC CHARGE WITH ELECTRIC AND MAGNETIC FIELDS
ELECTROMAGNETIC INTERACTION IS ONE OF THE FOUR FUNDAMENTALS INTERACTIONS IN NATURE
STRONG
ELECTROMAGNETIC
WEAK
GRAVITATIONAL
COULOMB'S LAW
THE FORCE F (OR ELECTROSTATIC FORCE) BTW TWO POINT CHARGES q1 AND q2 THAT ARE SEPERATED AT DISTANCE r APART
ELECTRIC FIELD,E
ELECTRIC FIELD IS A REGION AROUND AN ELECTRIC CHARGE OR A REGION A STATIN ELECTRIC CHARGE EXPERIENCES ELECTRIC FORCE
THE ELECTRIC FIELD INTENSITY (ELECTRIC FIELD STRENGTH) IS THE FORCE PER UNIT CHARGE WHEN PLACED IN THE ELECTRIC FIELD
ELECTRIC FLUX
THE ELCTRIC FLUX DENSITY ,D IS THE QUANTITY OF THE ELECTRIC FIELD LINE PER UNIT AREA IS THE MEASURE OF THE ELECTRIC FIELD INTENSITY , THE HIGHER THE FLUX DENSITY THE STRONGER THE ELECTRIC FIELD.
CONVENTIONALLY, THE ELECTRIC FIELD LINES DO NOT CROSS EACH OTHER; PARALLEL LINES REPRESENT UNIFORM ELECTRIC FIELD , WHILE NO-UNIFORM FIELDS ARE REPRESENTED BY EITHER CONVERGING OR DIVERGING LINES.
MAGNETIC FIELDS
MAGNETIC FIELD IS A REGION WHERE A CHARGED PARTICLE WILL EXPERIENCE A MAGNETIC FORCE DUE TO ITS MOTION. IT IS ALSO A REGION WHERE A CURRENT CARRYING LOOP WILL EXPERIENCE FORCE DUE TO THE FLOWING CURRENT
ANY PERMANENT MAGNET HAVE TWO POLES, THE NORTH PILE AND THE SOUTH POLE AND THE MAGNETIC FIELD LINES ARE COMPLETE LOOPS THAT OUT FROM THE NORTH POLE INTO THE SOUTH POLE. LIKE POLES REPEL,UNLIKE POLES ATTRACT.
THE MAGNETIC FIELD INTENSITY,B
MAGNETIC FIELD STRENGTH (ALSO CALLED THE MAGNETIC FIELD INTENSITY) DENOTED BY H IS PART OF A MAGNETIC FIELD THAT DOES NOT CAUSE BY THE MAGNETIZATION OF A MATERIAL.
WHEN THE FORCE ( AND HENCE,THE ACCELERATION) IS PERPENDICULAR TO THE VELOCITY , IT RESULTS IN ELICAL CIRCULAR MOTION
CALCULATING THE MAGNETIC FIELD DUE TO CURRENT CARRYING CONDUCTOR
BIOT-SAVART'S LAW
AMPERE'S LAW
THE ELECTROMAGNETIC WAVES
THE EM WAVES ARE THE RESULTS OF THE OSCILLATION OF ELECTRIC DIPOLE. THE EM WAVES ARE SINUSOIDAL WHEN THE DIPOLE OSCILLATES IN SIMPLE HARMONIC NOTION (SHM)
THE PRODUCTION OF EM WAVES CAN BE ACCOMPLISHED ELECTRONICALLY OR OCCURS NATURALLY AS A RESULT OF ATOMIC OR MOLECULAR VIBRATION