1. END BASIC ELECTRICAL THEORY Basic Electricity

2. 1 THE ATOM AND ITS STRUCTURE

3. 2 CURRENT

4. 3 THE FLOW OF ELECTRONS

5. 4 VOLTAGE

6. 5

7. 6 Continuity Of The Electric Circuit

8. 7 Elements in an electric clrcuit

9. 8 OHM'S LAW

10. 9 V I R Ohm’s law V = I x R I = V / R R = V / I

11. 10 2 ohms How much current ? V IR V / R = I 12 / 2 = 6 amps 12V

12. 11 SHORT CIRCUIT AND FUSES

13. 12 ELECTRIC WIRES AND CABLES

14. 13 Cable

15. 14 RESISTORS

16. 15 - 12v + - 12v + V 24 volts 4v 12 volts Series With all the bulbs the same size each bulb will use 4 volts to push the current through it. Two batteries in series doubles the amount of cells so doubles the amount of voltage

17. 16 12 volts V - + + - Parallel Two batteries in parallel increases the surface area of the plates in the battery so their combined output is increased Bulbs in parallel each bulb has its own supply and its own earth each bulb therefore uses 12 volts to push the current through it.

18. 17 RESISTORS IN SERIES RESISTORS IN PARALLEL

19. 18 RESISTIVITY

20. 19 Resistance Variation Upon Temperature Variation

21. 20 Rheostats And Potentiometers

22. 21 ALTERNATOR

23. 22 Capacitor / Condenser

24. 23 Magnetic Effect Of The Electric Current

25. 24 The right hand rule

26. 25

27. 26

28. 27 Direct Current Electric Motor

29. 28 DYNAMO

30. 29 Semiconductor Materials DIODE

31. 30 ZENER DIODE

32. 31

33. 32

34. 33

35. 34

36. 35 Pressure Voltage Volts V Flow Current AmpsI Restriction ResistanceOhmsR PowerWatts W Electrical Terms