1. ELECTROMAGNETISM

2. ELECTROMAGNETISM ?????

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

4. MAGNETIC PHENOMENON

5. ELECTROMAGNETISM DAVY’S EXPERIMENT

6. OERSTED’S EXPERIMENT

7. ANY CHARGE IN MOTION CREATES MAGNETIC FIELD

8. MOVING ELECTRONS INDUCE MAGNETIC FIELD

9. DETERMINING THE DIRECTION OF THE MAGNETIC FIELD AROUND CURRENT CARRYING CONDUCTOR THUMB-DIRECTION OF ELECTRONS FLOW FINGERS—MAGNETIC FLUX LINES

11. COIL OF WIRE IS CALLED HELIX

12. COIL OF WIRE CARRYING ELECTRICAL CURRENT IS CALLED SOLENOID

13. SOLENOID’S MAGNETIC FIELD

14. ELECTROMAGNET= SOLENOID + IRON CORE

15. ELECTROMAGNET

16. ELECTROMAGNET vs SOLENOID ELECTROMAGNET SOLENOID

17. ELECTROMAGNETIC INDUCTION: AN ELECTRIC CURRENT IS INDUCED IN IN A CIRCUIT IF SOME PART OF THIS CIRCUIT IS IN A CHANGING MAGNETIC FIELD

18. E.M. INDUCTION STATIONARY CONDUCTOR + MOVING MAGNET STATIONARY MAGNET + MOVING CONDUCTOR ELECTROMAGNET WITH A/C CURRENT + STATIONARY CONDUCTOR

19. STATIONARY MAGNET

20. MOVING MAGNET

22. ELECTROMAGNET WITH A/C

23. METAL DETECTOR

24. FARADAY’S LAW MAGNITUDE OF INDUCED CURRENT DEPENDS ON THE STRENGTH OF MAG. FIELD THE VELOCITY OF MAG. FIELD THE ANGLE OF THE CONDUCTOR TO THE MAG. FIELD THE NUMBER OF TURNS IN THE CONDUCTOR

25. SPEED FAST –E.M.F

26. ANGLE ANGLE –E.M.

27. # OF COILS STRONGER WEAKER

28. LEFT HAND DYNAMO RULE N S e

29. ELECTRON FLOW DIRECTION DIRECTION OF e

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

31. GENERATOR COMPONENTS A POWERFUL MAGNET AN ARMATURE (WIRE LOOP)

32. GENERATORS D/C A/C

33. D/C GENERATOR COMMUTATOR RING

34. D/C POWER FROM BATTERY I TIME

35. A/C GENERATOR A/C FREQUENCY IN THE US – 60 Hz

36. ELECTRIC MOTOR-A DEVICE THAT CONVERTS ELECTRICAL ENERGY TO MECHANICAL ENERGY

37. TYPES OF MOTORS D/C ( COMMUTATOR RING!!) A/C

38. D/C MOTOR

39. A/C MOTORS SYNCHRONOUS ( REVERSE OF GENERATOR) INDUCTION

40. INDUCTION MOTOR ROTATES THE ANODE IN THE MODERN X-RAY TUBES

41. INDUCTION MOTOR ROTOR STATOR

42. PRINCIPLE OF OPERATION

43. RIGHT HAND MOTOR RULE

44. COMPARISON – GENERATOR vs MOTOR