ELECTROMAGNETISM. ELECTROMAGNETISM ????? ELECTROMAGNETISM THE BRANCH OF PHYSICS THAT DEALS WITH THE RELATIONSHIP BETWEEN ELECTRICITY & MAGNETISM

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  • ELECTROMAGNETISM

  • ELECTROMAGNETISM ?????

  • ELECTROMAGNETISM

    THE BRANCH OF PHYSICS THAT DEALS WITH THE RELATIONSHIP BETWEEN ELECTRICITY & MAGNETISM

  • MAGNETIC PHENOMENON

  • ELECTROMAGNETISMDAVYS EXPERIMENT

  • OERSTEDS EXPERIMENT

  • ANY CHARGE IN MOTION CREATES MAGNETIC FIELD

  • MOVING ELECTRONS INDUCE MAGNETIC FIELD

  • DETERMINING THE DIRECTION OF THE MAGNETIC FIELD AROUND CURRENT CARRYING CONDUCTORTHUMB-DIRECTION OF ELECTRONS FLOWFINGERSMAGNETIC FLUX LINES

  • COIL OF WIRE IS CALLED HELIX

  • COIL OF WIRE CARRYING ELECTRICAL CURRENT IS CALLED SOLENOID

  • SOLENOIDS MAGNETIC FIELD

  • ELECTROMAGNET= SOLENOID + IRON CORE

  • ELECTROMAGNET

  • ELECTROMAGNET vs SOLENOIDELECTROMAGNETSOLENOID

  • ELECTROMAGNETIC INDUCTION:

    AN ELECTRIC CURRENT IS INDUCED IN IN A CIRCUIT IF SOME PART OF THIS CIRCUIT IS IN A CHANGING MAGNETIC FIELD

  • E.M. INDUCTIONSTATIONARY CONDUCTOR + MOVING MAGNETSTATIONARY MAGNET + MOVING CONDUCTORELECTROMAGNET WITH A/C CURRENT + STATIONARY CONDUCTOR

  • STATIONARY MAGNET

  • MOVING MAGNET

  • MOVING MAGNET

  • ELECTROMAGNET WITH A/C

  • METAL DETECTOR

  • FARADAYS LAW

    MAGNITUDE OF INDUCED CURRENT DEPENDS ONTHE STRENGTH OF MAG. FIELDTHE VELOCITY OF MAG. FIELDTHE ANGLE OF THE CONDUCTOR TO THE MAG. FIELDTHE NUMBER OF TURNS IN THE CONDUCTOR

  • SPEEDFAST E.M.F

  • ANGLEANGLE E.M.

  • # OF COILSSTRONGERWEAKER

  • LEFT HAND DYNAMO RULENSe

  • ELECTRON FLOW DIRECTIONDIRECTION OF eDIRECTION OF e

  • ELECTRIC GENERATOR ( DYNAMO)A DEVICE THAT CONVERTS MECHANICAL ENERGY TO ELECTRICAL ENERGY BY E.M. INDUCTION

  • GENERATOR COMPONENTSA POWERFUL MAGNETAN ARMATURE (WIRE LOOP)

  • GENERATORSD/CA/C

  • D/C GENERATORCOMMUTATOR RING

  • D/C POWER FROM BATTERYITIME

  • A/C GENERATORA/C FREQUENCY IN THE US 60 Hz

  • ELECTRIC MOTOR-A DEVICE THAT CONVERTS ELECTRICAL ENERGY TO MECHANICAL ENERGY

  • TYPES OF MOTORSD/C ( COMMUTATOR RING!!)A/C

  • D/C MOTOR

  • A/C MOTORS SYNCHRONOUS ( REVERSE OF GENERATOR)

    INDUCTION

  • INDUCTION MOTOR ROTATES THE ANODE IN THE MODERN X-RAY TUBES

  • INDUCTION MOTORROTORSTATOR

  • PRINCIPLE OF OPERATION

  • RIGHT HAND MOTOR RULE

  • COMPARISON GENERATOR vs MOTOR