# Electricity Welcome to the GCSE Physics Ninja Electricity course.

These video lessons are based on question-and-answer flashcards. You can either make your own or save time by purchasing the printable flashcard set from the shop.

 Static Electricity Circuits and Components (cont.) 1. Static electricity in insulators 33. Lamps in a parallel circuit 2. Like and unlike charges 34. Advantage of connecting lamps in parallel 3. Producing and detecting electrical charges 35. Circuit analysis 4. Electrical fields 36. Electrical components (part 1) 5. Electric field patterns 37. Electrical components (part 2) 6. The electroscope and a charged rod 38. Thermistors Electrical Current 39. LDR and resistance 7. Electrical current 40. Diodes 8. Electric charge and current 41. Variation of current in a resistor circuit 9. Flow of charge equation 42. The LED 10. Charge flow calculation 43. Lighting costs and efficiencies Potential Difference & Electrical Work 44. The variable potential divider 11. A cell's voltage 45. Simple circuit application 12. Potential difference Digital Electronics 13. Potential difference and work done 46. Analogue vs. digital signals 14. Electrical work done equation 47. Logic gates and truth tables 1 15. Electrical work done calculation 48. Logic gates and truth tables 2 Resistance 49. Logic gate system design 16. Current through a resistor 50. Logic gate system truth table 17. Current vs. Potential difference graphs Household Electricity 18. Electrical resistance equation 51. Current and direction 19. Resistance calculation 52. Oscilloscope traces 20. Changing voltage or resistance in a circuit 53. Oscilloscope calculations 21. Potential difference vs. current 54. Mains electricity 22. Resistance of a filament bulb 55. Hazards of electricity 23. Resistance of a lamp experiment 56. Mains plug diagram 24. Resistance vs wire diameter and length 57. Mains plug materials 25. Resistance vs wire diameter and length - calculation 58. Electrical faults Circuits and Components 59. Circuit protected by a fuse 26. Series circuits 60. Residual current circuit breakers 27. Combined resistances in series 61. Metal cases and the earth wire 28. Series circuit diagram 62. Hairdrier earth wire 29. Cells in series 63. Higher currents - thicker cables 30. Parallel circuits 64. Resistors and energy 31. Combined resistances in parallel 65. Electrical power equation 32. Resistor network calculation 66. Electrical power and fuse calculation 67. Electrical energy transferred by a lamp calculation

## What will I learn in this course?

When you have completed this course, you will be able to...

• Describe and understand static electricity.
• Explain how to produce and detect electrical charges.
• Understand the nature of electric fields.
• Describe electric current as a flow of charge and perform calculations.
• Define potential difference in terms of energy and charge.
• Calculate the electrical work done by charge as it flows through a component.
• Recognise current vs. potential difference graphs for various components.
• Use the current, resistance & potential difference equation in calculations.
• Describe how the resistance of a filament bulb varies with current.
• Explain how resistance of a wire varies with length and diameter.
• Analyse series and parallel circuits.
• Find the total resistance of a series or parallel network of resistors.
• Describe and recognise common electrical components.
• Understand how potential dividers work.
• Appreciate the differences between analogue and digital signals.
• Analyse and design digital circuits using logic gates.
• Describe the characteristics of the mains electricity supply.
• Explain household electricity safety precautions.
• Calculate the electrical energy transferred using the power rating of an appliance.
• Understand that electrical energy can be measured in joules or kilowatt-hours.