2019年7月18日 · An LDR or light dependent resistor is also known as photo resistor, photocell, photoconductor. It is a one type of resistor whose resistance varies depending on the amount of light falling on its surface.

2025年3月20日 · In the world of electronics, Light Dependent Resistors (LDRs), also known as photoresistors, play an essential role in detecting and responding to changes in light intensity. These versatile and cost-effective components are widely used across various applications, from consumer electronics to industrial systems.

A photoresistor (also known as a light-dependent resistor, LDR, or photo-conductive cell) is a passive component that decreases in resistance as a result of increasing luminosity (light) on its sensitive surface, in other words, it exhibits photoconductivity.

2024年6月5日 · What Is Light Dependent Resistor (LDR)? LDR (Light Dependent Resistor) as the name states is a special type of resistor that works on the photoconductivity principle means that resistance changes according to the intensity of light. Its resistance decreases with an increase in the intensity of light.

2023年6月18日 · A light-dependent resistor (LDR) is a passive component that changes its resistance based on light intensity. Also known as photoresistors, photocells, or photoconductors, LDRs are made from semiconductor materials with high resistance in …

2025年2月5日 · A Light Dependent Resistor (LDR), also known as a photoresistor, is a type of passive electronic component that changes its resistance based on the intensity of light falling on it. The symbol of an LDR in electronic circuits is a resistor with two arrows pointing towards it, indicating its sensitivity to light. The symbol is as follows:

2023年11月28日 · Discover the functionality and diverse applications of Light Dependent Resistors (LDRs). Functionally, the LDR’s resistance shifts significantly upon exposure to light rays. In darkness, its resistance can reach several megaohms, whereas in bright light, it swiftly drops to mere hundred ohms.

A Light Dependent Resistor (LDR) is also called a photoresistor or a cadmium sulfide (CdS) cell. It is also called a photoconductor. It is basically a photocell that works on the principle of photoconductivity. The passive component is basically a resistor whose resistance value decreases when the intensity of light decreases.

2024年9月23日 · An LDR, a photoresistor, is a passive electronic component whose resistance varies with the intensity of light falling on the element. The resistance is high in darkness or low light, whereas the resistance drops to a meager value in bright sunlight. It makes LDRs suitable for circuits requiring sensing or controlling based on light levels.

Light dependent resistor LDR or photoresistor changes its resistance when light falls on it, thus it detects the presence of light. In this article, we will learn about Light dependent resistors (LDR or photoresistors), their symbol, construction, working, types, latency, technical specifications, and applications of LDR.