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Photoresistor Definition

A photoresistor is made of a high resistance semiconductor that absorbs photons and based on the quantity and frequency of the absorbed photons the semiconductor material give bound electrons enough energy to jump into the conduction band. Photoelectric or light sensing device are used in almost any branch of industry for controlsafetyamusement and sound reproduction and inspection and.


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Photon light particles and resistor.

Photoresistor definition. The resistance generated varies depending on the light striking at his surface. When photons hit the tapes electrons can pass through the semiconductor. A high intensity of light incident on the surface will cause a lower resistance whereas a.

A photoresistor or light dependent resistor is a resistor whose resistance decreases with increasing incident light intensity. A photoresistor can be applied in light-sensitive detector circuits and light- and dark-activated switching circuits. The name photoresistor is the combination of words.

Word Definition Resistor An electrical component that resists the flow of electricity and dissipates electrical energy as heat. Photoresistor synonyms photoresistor pronunciation photoresistor translation English dictionary definition of photoresistor. There are three types of photoresistor.

A photoresistorsometimes called a photocell or light-dependent resistor LDRvaries its resistance in response to light. In other words it exhibits photoconductivity. The article introduces the photoresistors main characteristics and principles including the working principle and structural principle.

Also called photocell See also photoelectric. LDR is an acronym for Light Dependent Resistor. The photoresistor is made of cadmium sulphide tape a semiconductor.

In order to represent a Photoresistor in a circuit diagram the symbol chosen was that would indicate it to be a light dependent device along with the fact that it is a resistor. Fōtō-rĭ-zĭs tər A resistor whose resistance varies as a function of the intensity of light it is exposed to. Consequently photoresistors are popular in childrens toys see example below nightlights clock radios and other inexpensive gadgets.

It has a tremendous ability to change its resistance in exposure to light. Photoresistor Light Dependent Resistor LDR Definition. These photoresistors tend to decrease their resistance values with an increase in the intensity of the incident light.

The resistance of a photoresistor decreases with increasing incident light intensity. The photoresistor is an electronic component which resistivity varies according to the amount of light received the resistance decreases when exposed to the light. They are small inexpensive and easy-to-use.

In other words the flow of electric current through the photoresistor increases when the intensity of light increases. II What is a Photoresistor. Dimming circuit and light switch are the two applications of the photoresistor.

Frequently used for current control in electrical circuits Photoresistor A light-sensitive resistor. A photoresistor is a type of resistor whose resistance decreases when the intensity of light increases. Also known as a light-dependent resistor a photoresistor can be used to indicate the presence or absence of light and change the way a circuit behaves accordingly.

It lowers its resistance to current flow when exposed to light. Photoresistor is a type of device whose resistance changes with respect to the intensity of the incident radiation. A photoresistor is a type of light-dependent resistor that varies its resistance values based on the light incident on it.

A photoresistor or photocell is a light-controlled variable resistor. According to Wikipedia a photoresistor also named LDR for Light Decreasing Resistance or light-dependent resistor or photo-conductive cell is a passive component that decreases resistance with respect to receiving luminosity light on the components sensitive surface. The resulting free electrons conduct electricity resulting in lowering resistance of the photoresistor.

A photoresistor is a type of resistor that reacts to light. It acts like a resistor except that the value of resistance depends on how much light is shining on it. A photoresistor which is also called a light-dependent resistor LDR or photocell consists of a piece of semiconductor material that exhibits an interesting characteristic.

Ultraviolet photoresistors infrared photoresistors visible light photoresistors. A resistor used in certain photoelectric cells whose resistance varies as a function of the intensity of light it is exposed to. A photocell or photoresistor is a sensor that changes its resistance when light shines on it.


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