Investigating the Brightness of Light Shining on the Light Dependant Resistor

Investigation of the brightness of the light on the light dependent resistor The purpose of my research was to investigate how the brightness (intensity) of light hitting the LDR (light dependent resistor) affects resistance. Various methods can be used to change intensity. One way is to raise the voltage by plugging the power supply to a higher voltage. However, this method may be difficult because you do not know how high the voltage is. Also, as it is dangerous, obtaining a higher voltage may be more difficult.

To be a good paint, first of all, you must have a beautiful and bright color. The way the pigment develops color is by illuminating them, which absorb some, but not all, of the color of light. For example, white light is a mixture of light of multiple colors. For example, red ocel is also called hematite, also called iron anhydrous (Fe 2 O 3), absorbs yellow, green and blue light. Reflected light is red - orange. When photons (particles of light) collide with electrons in the pigment and are absorbed, light is absorbed and electrons of that energy move. However, quantum mechanics says that electrons can not absorb energy. The specific energy (and color) it absorbs depends on the placement of the electrons in the material and the placement of the electron depends on its chemical nature.

Investigation of the brightness of the light on the light dependent resistor The purpose of my research was to investigate how the brightness (intensity) of light hitting the LDR (light dependent resistor) affects resistance. Various methods can be used to change intensity. One way is to raise the voltage by plugging the power supply to a higher voltage. However, this method may be difficult because you do not know how high the voltage is. Also, as it is dangerous, obtaining a higher voltage may be more difficult.

The photoresistor is a resistor whose resistance decreases as the intensity of incident light increases. It can also be said to be a photoreceptor. LDR is made of a high resistance semiconductor. If the light striking the device has a sufficiently high frequency, the photons absorbed by the semiconductor will give enough energy to the bound electrons to jump into the conduction band. The generated free electrons (and their hole-mates) are conductive, thereby reducing the electrical resistance. LDR devices can be built-in or external.