1. Electric Currents & Circuits AP – Ch 20 & 21

2. Intro Stuff Circuit? – Power Supply – Resistance

3. Battery? A thing that produces a potential difference through a chemical reaction. – battery, electric, device that converts chemical energy into electrical energy. (How Stuff Works. Com) The act of beating or pounding. – Law. The unlawful and unwanted touching or striking of one person by another, with the intention of bringing about a harmful or offensive contact. (Wiki-Idiot-Pedia.comedy)

5. Intro Stuff Electromotive Force – emf Maximum V of battery Current – Flow of charge

6. Intro Stuff

8. Ohm ’ s Law – States linear relationship between V & R

9. Intro Stuff Resistance – Says what it means e - has to ‘ fight ’ thru a wire or ‘ resistor ’

12. CONVENTIONAL Current ELECTRON Current

13. CONVENTIONAL Current ELECTRON Current

29. Intro Stuff Power – Same as regular P, but different

30. Intro Stuff Power …

31. Intro Stuff Wiring Circuits – Series / Parallel Parallel

37. WHY? C //

38. WHY? C Series

39. Quantitative Summary

40. Coulomb’s Law: Force between any 2 charges

41. Electric Field Strength: Force on test Q

42. Electric Potential Energy: Fd

43. Electric Field (av): Potential at a distance

44. Electric POTENTIAL: NOT a vector…

45. Capacitance: Property of Capacitors

46. Capacitance: Property of Capacitors

47. Energy stored in Capacitor:

48. Definition of Electrical Current: SI Unit - Amps

49. Definition of Electrical Current: SI Unit – Amps (A)

50. Resistance in a WIRE: SI Unit – Ohms (  )

51. OHM’S LAW: All Circuits Must Obey…

52. OHM’S LAW: All Circuits Must Obey… 12V 6666

53. Electrical Power: From P=W/t

54. Series Circuits

55. Parallel Circuits

56. Circuits w/Capacitors

58. EXAMPLE #1 Three 12  resistors are used in two circuits; one in series and one in parallel. What is the R equivalent of each circuit?

59. Series 12 

60. Parallel 12 

61. Series + Parallel 12  66 18 