Series circuits lesson

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Introduction to current and voltage laws in a series circuit

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Series circuits lesson

  1. 1. http://www.youtube.com/watch?v=-n1pSHzdahc
  2. 2. Series circuits 29 January 2015 The cards have keywords with more scientific definitions, can you match them up?
  3. 3. The opposition to the flow of current The rate of flow of charge How much energy each charge carries All components are in a single branch Components are in multiple branches
  4. 4. Aims • State the equations of current and voltage in a series circuit • Describe the changes in current and voltage in a series circuit • Define current and voltage
  5. 5. For a series circuit: 321 IIII  The current is the same throughout the circuit
  6. 6. Current is the rate of flow of charge t Q I 
  7. 7. Current The number of Coulombs flowing past a point in the circuit every second. I = Q/t ☺ ☺ ☺ ☺ ☺ ☺ ☺ ☺ ☺ ☺ ☺ A I’m counting how many coulombs of electrons go past me every second 1 Amp = 1 coulomb per second
  8. 8. 321 IIII  321 VVVV 
  9. 9. For a series circuit: 321 VVVV  The total voltage is the sum of the individual voltages
  10. 10. Voltage(emf) ☺ ☺ ☺ ☺ ☺ ☺ ☺ ☺ ☺ ☺ ☺ V I’m checking the difference in energy (per coulomb) between the 2 red arrows 1 Volt = 1 Joule per coulomb
  11. 11. Voltage (p.d.) ☺ ☺ ☺ ☺ ☺ ☺ ☺ ☺ ☺ ☺ ☺ V I’m checking the difference in energy (per coulomb) before and after the lamp 1 Volt = 1 Joule per coulomb
  12. 12. Voltage is the energy transferred per charge Q W V 
  13. 13. 321 IIII  321 VVVV 
  14. 14. I have learned: I have learned:

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