This physics video tutorial explains the concept of basic electricity and electric current. It explains how DC circuits work and how to calculate voltage, current, and electrical resistance using Ohm's law. In addition, it shows you how to calculate the electric charge and the number of electrons flowing through a wire at any given point. In addition, it has a few examples and practice problems on electric power, cost of electricity in Kwh and other stuff as well. It provides visual drawings, equations, and formulas as well as the units of common variables that you'll encounter when dealing with electricity. It discusses the difference between conventional current and electron flow. The unit of electric current is the ampere or amps for short. The unit for resistance is ohms and for voltage is volts. 1A is 1C/s or 1 coulomb per second. Electric current is the rate of electric charge flow. Charge represents the quantity of electrons in the case of metal conductors. The unit of power is the watt which is 1 Joule per second. Power is the rate at which energy is transferred. Equations used include V=IR, P=VI, and Q=It.

This physics video tutorial explains the concept of series and parallel circuits and how to find the electrical current that flows through the circuit. It discusses Ohm's law and the relationship between voltage, current, and resistance. This tutorial review contains plenty of notes, equations / formulas, examples, and practice problems to help you on your next worksheet assignment, quiz / test or even upcoming final exam.

Here is a list of topics:

1. Ohm's Law - Voltage, Current, Resistance - V=IR Formula

2. Voltage and Current are directly proportional

3. Resistance and Current are inversely proportional

4. Definition of Voltage - Electric Potential Energy Per Unit Charge

5. Voltage Formula - Work Divided By Charge in Coulombs

6. Unit of Voltage - Volt & Unit of Current - Amps or Ampere

7. Equation of Charge = Current Multiplied By Time in Seconds

8. Definition of Current - Rate of Charge Flow Per Second

9. How To Calculate the total number of electrons flowing in a dc circuit given current in amps and time in seconds

10. Conventional Current vs Electron Flow - Flow of Positive Charge vs Negative Charge

11. Voltage - Electric Potential Difference - Electromotive Force or Electron Moving Force

12. Unit of Resistance - Ohms

13. Definition of Power - Rate of Energy Transfer

14. Unit of Power - Watts. 1 Watt = 1 Joule Per Second

15. Determining the amount of energy transferred in a circuit given time.

16. Power Delivered / Released by Battery vs Power Absorbed by Resistors - Conservation of Energy Law

17. Power Formulas / Equations - P=VI, P=I^2R, P=V^2/R

18. Charge vs Electric Current - Electricity

19. Series and Parallel Circuits Explained

20. Series Circuit - Same Current Flows Through Each Resistor - Single Pathway

21. Equivalent Resistance - Series Circuit - Req=r1+r2

22. Parallel Circuits - Multiple Paths For Electron Flow - Same Voltage Across Each Resistor

23. Equivalent Resistance of Parallel Circuit - 1/R = 1/R1 + 1/R2 + 1/R3

24. Solving Series and Parallel Circuit Problems - Finding The Current Flowing Through Each Resistor and Voltage Drop Across Each Resistor

25. Kirchoff's Voltage Law - Series Circuit - Sum of Voltages Around a Closed Loop Equals Zero

26. Kirchhoff's Current Law - Parallel Circuit - Current that enters a junction must equal the current that leaves it

27. Battery - Voltage Pump vs Resistor - Voltage Drop

28. Active vs Passive Elements

29. Internal Resistance of a Battery and EMF Calculations

30. Voltage Divider Circuit - Increasing and Decreasing Resistance

31. Voltmeter vs Ammeter Explained - High vs Low Internal Resistance

32. Voltage Drop Across Heavy Load

33. Voltage Sign Conventions and Direction of Current Flow

34. Calculating absolute and relative voltage potentials across every point in a closed circuit

35. Resistors transfer or convert electrical energy to heat energy

36. DC vs AC - Direct Current vs Alternating Current

37. Frequency of AC Voltage - Sine Wave - Number of Cycles Per Current - 60 Hz - Current reverses 60 times per second - no net flow

38. Deriving Formula Power - work over time

39. Charging and Discharging of a Battery - Direction of Polarity

40. Solving Combination Series and Parallel Circuits

41. Finding Equivalent Resistance of Series and Parallel Combined Circuits

42. Simplifying Circuits to find total resistance and current

43. Circuits With Two Batteries or Voltage Sources

This physics video tutorial explains the concept of basic electricity and electric current. It explains how DC circuits work and how to calculate voltage, current, and electrical resistance using Ohm's law. In addition, it shows you how to calculate the electric charge and the number of electrons flowing through a wire at any given point. In addition, it has a few examples and practice problems on electric power, cost of electricity in Kwh and other stuff as well. It provides visual drawings, equations, and formulas as well as the units of common variables that you'll encounter when dealing with electricity. It discusses the difference between conventional current and electron flow. The unit of electric current is the ampere or amps for short. The unit for resistance is ohms and for voltage is volts. 1A is 1C/s or 1 coulomb per second. Electric current is the rate of electric charge flow. Charge represents the quantity of electrons in the case of metal conductors. The unit of power is the watt which is 1 Joule per second. Power is the rate at which energy is transferred. Equations used include V=IR, P=VI, and Q=It.

This physics video tutorial explains the concept of series and parallel circuits and how to find the electrical current that flows through the circuit. It discusses Ohm's law and the relationship between voltage, current, and resistance. This tutorial review contains plenty of notes, equations / formulas, examples, and practice problems to help you on your next worksheet assignment, quiz / test or even upcoming final exam.

Here is a list of topics:

1. Ohm's Law - Voltage, Current, Resistance - V=IR Formula

2. Voltage and Current are directly proportional

3. Resistance and Current are inversely proportional

4. Definition of Voltage - Electric Potential Energy Per Unit Charge

5. Voltage Formula - Work Divided By Charge in Coulombs

6. Unit of Voltage - Volt & Unit of Current - Amps or Ampere

7. Equation of Charge = Current Multiplied By Time in Seconds

8. Definition of Current - Rate of Charge Flow Per Second

9. How To Calculate the total number of electrons flowing in a dc circuit given current in amps and time in seconds

10. Conventional Current vs Electron Flow - Flow of Positive Charge vs Negative Charge

11. Voltage - Electric Potential Difference - Electromotive Force or Electron Moving Force

12. Unit of Resistance - Ohms

13. Definition of Power - Rate of Energy Transfer

14. Unit of Power - Watts. 1 Watt = 1 Joule Per Second

15. Determining the amount of energy transferred in a circuit given time.

16. Power Delivered / Released by Battery vs Power Absorbed by Resistors - Conservation of Energy Law

17. Power Formulas / Equations - P=VI, P=I^2R, P=V^2/R

18. Charge vs Electric Current - Electricity

19. Series and Parallel Circuits Explained

20. Series Circuit - Same Current Flows Through Each Resistor - Single Pathway

21. Equivalent Resistance - Series Circuit - Req=r1+r2

22. Parallel Circuits - Multiple Paths For Electron Flow - Same Voltage Across Each Resistor

23. Equivalent Resistance of Parallel Circuit - 1/R = 1/R1 + 1/R2 + 1/R3

24. Solving Series and Parallel Circuit Problems - Finding The Current Flowing Through Each Resistor and Voltage Drop Across Each Resistor

25. Kirchoff's Voltage Law - Series Circuit - Sum of Voltages Around a Closed Loop Equals Zero

26. Kirchhoff's Current Law - Parallel Circuit - Current that enters a junction must equal the current that leaves it

27. Battery - Voltage Pump vs Resistor - Voltage Drop

28. Active vs Passive Elements

29. Internal Resistance of a Battery and EMF Calculations

30. Voltage Divider Circuit - Increasing and Decreasing Resistance

31. Voltmeter vs Ammeter Explained - High vs Low Internal Resistance

32. Voltage Drop Across Heavy Load

33. Voltage Sign Conventions and Direction of Current Flow

34. Calculating absolute and relative voltage potentials across every point in a closed circuit

35. Resistors transfer or convert electrical energy to heat energy

36. DC vs AC - Direct Current vs Alternating Current

37. Frequency of AC Voltage - Sine Wave - Number of Cycles Per Current - 60 Hz - Current reverses 60 times per second - no net flow

38. Deriving Formula Power - work over time

39. Charging and Discharging of a Battery - Direction of Polarity

40. Solving Combination Series and Parallel Circuits

41. Finding Equivalent Resistance of Series and Parallel Combined Circuits

42. Simplifying Circuits to find total resistance and current

43. Circuits With Two Batteries or Voltage Sources

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