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5.5 The potential divider

5.5 The potential divider. 5.5 The potential divider. 3V. 6V. 3V. 5.5 The potential divider. 5.5 The potential divider. 5.5 The potential divider. 5.5 The potential divider. I. 5.5 The potential divider. I. 5.5 The potential divider. I. 5.5 The potential divider. I.

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5.5 The potential divider

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  1. 5.5 The potential divider

  2. 5.5 The potential divider 3V 6V 3V

  3. 5.5 The potential divider

  4. 5.5 The potential divider

  5. 5.5 The potential divider

  6. 5.5 The potential divider I

  7. 5.5 The potential divider I

  8. 5.5 The potential divider I

  9. 5.5 The potential divider I

  10. 5.5 The potential divider I

  11. 5.5 The potential divider I

  12. To supply a variable pd: 2V / 100cm 0.02 V / cm Terminal pd = 2.0 V Variable voltage output to a loud speaker A simple volume control AC Audio input

  13. To supply a variable pd: 2V / 100cm 0.02 V / cm Terminal pd = 2.0 V Variable voltage output to a loud speaker A simple volume control AC Audio input mA

  14. To supply a variable pd: 2V / 100cm 0.02 V / cm Terminal pd = 2.0 V Variable voltage output to a loud speaker A simple volume control AC Audio input Cell X mA If the mA meter reads zero at 60cm along the wire, What is the emf of the unknown cell X?

  15. To supply a variable pd: 2V / 100cm 0.02 V / cm Terminal pd = 2.0 V Variable voltage output to a loud speaker A simple volume control AC Audio input Cell X mA If the mA meter reads zero at 60cm along the wire, What is the emf of the unknown cell X? 60 cm at 0.02 V/cm =

  16. To supply a variable pd: 2V / 100cm 0.02 V / cm Terminal pd = 2.0 V Variable voltage output to a loud speaker A simple volume control AC Audio input Cell X mA If the mA meter reads zero at 60cm along the wire, What is the emf of the unknown cell X? 60 cm at 0.02 V/cm = 1.2 V

  17. To supply a variable pd: AC Audio input AC Audio input Variable voltage output to a loud speaker A simple volume control

  18. 5.5 The potential divider The current through the bulb can be reduced to zero In this circuit

  19. 5.5 The potential divider Sensor circuits: Adjust the variable resistor To obtain a suitable output voltage Vout Vout

  20. 5.5 The potential divider Sensor circuits: Adjust the variable resistor To obtain a suitable output voltage Vout Vout If the temp falls then.. * the resistance of the thermistor rises * pd across the thermistor rises

  21. 5.5 The potential divider Sensor circuits: Adjust the variable resistor To obtain a suitable output voltage Vout Vout If the temp falls then.. * the resistance of the thermistor rises * pd across the thermistor rises

  22. 5.5 The potential divider Sensor circuits: Adjust the variable resistor To obtain a suitable output voltage Vout Vout If the temp falls then.. * the resistance of the thermistor rises * pd across the thermistor rises

  23. 5.5 The potential divider If the light intensity falls * the resistance of the LDR rises * pd across the the LDR rises

  24. 5.5 The potential divider If the light intensity falls * the resistance of the LDR rises * pd across the the LDR rises

  25. 5.5 The potential divider If the light intensity falls * the resistance of the LDR rises * pd across the the LDR rises

  26. 5.5 The potential divider

  27. 5.5 The potential divider

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