Photoresistors can be used to generate solar power

What is a photoresistor & photodiode?

These are; the photoresistor, a device whose resistance changes with the ambient light, solar cell whose output power is proportional to the ambient light, photodiodes whose output current is proportional to the light and thermopiles which convert light into temperature into voltage.

What are the different types of photoresistors?

Photoresistors come in many types. Inexpensive cadmium sulfide (CdS) cells can be found in many consumer items such as camera light meters, clock radios, alarm devices (as the detector for a light beam), nightlights, outdoor clocks, solar street lamps, and solar road studs, etc.

Are photoresistors as sensitive to light as photodiodes or phototransistors?

Photoresistors are not as sensitive to light as photodiodes or phototransistors. Some of the applications of photoresistors are as follows- These are used as light sensors. These are used to measure the intensity of light. Night light and photography light meters use photoresistors.

Why are photoresistors useful?

This assets makes them beneficial in various packages wherein light degrees need to be detected or measured. Resistance Range: Photoresistors usually have a wide variety of resistance values. In darkness or low light situations, their resistance is excessive, regularly within the megaohm range.

What is a photoresistor based on?

A photoresistor is a type of light-dependent resistor that varies its resistance values based on the light incident on it. These photoresistors tend to decrease their resistance values with an increase in the intensity of the incident light. Photoresistors exhibit photoconductivity.

Can a photoresistor be placed in a streetlight?

Photoresistors can be placed in streetlights to control when the light is on. Ambient light falling on the photoresistor causes the streetlight to turn off. Thus energy is saved by ensuring the light is only on during hours of darkness.