What is the relationship between light intensity and resistance in a Light Dependent Resistor? - Essay Example

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Aim: To find out how a light dependent resistor is affected by light  intensity. Hypothesis: A light dependent resistor is one that changes its resistance with a change in the light ...........

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What Is The Relationship Between Light Intensity And Resistance In A Light Dependent Resistor?

Aim: To find out how a light dependent resistor is affected by light  intensity.

Hypothesis: A light dependent resistor is one that changes its resistance with a change in the light intensity on it. Hence if we can find the light intensity that is on the resistor and its resistance, we can see what factor the resistance is affected by.

Variables:

Independent: Light  Intensity

Dependent: Current

Controlled: Voltage, Resistor used, Ambient light, Filament Light Bulb used, light sensor and resistor.

Apparatus:

  1. Filament Light Bulb
  2. Clamp Stand
  3. Light  Dependent Resistor
  4. Voltmeter
  5. Wires
  6. Light Sensor
  7. Logger Pro
  8. Laptop
  9. Power Supply

Method:

  1. Connect up all the wires in order to the resistor and the power supply. Connect the voltmeter to the resistor in series. Attach the light bulb to a socket and put the light bulb facing downwards on the clamp stand.
  2. Put the power supply and the light bulb on. Connect the logger pro to the laptop and the light sensor to the logger pro and turn the software on.
  3. Put
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What Is The Relationship Between Light Intensity And Resistance In A Light Dependent Resistor?
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