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  1. Home, Louisiana Department of Revenue

    BATON ROUGE – The Louisiana Department of Revenue (LDR) is advising taxpayers of a change in how the U.S. Postal Service (USPS) applies postmarks to mailed items. This change may affect …

  2. Photoresistor - Wikipedia

    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 illuminance (light) on its sensitive …

  3. LDR (광의존 저항기)란 무엇인가요?

    Jun 3, 2025 · LDR은 전자를 활성화할 수 있는 빛 에너지가 없기 때문에 어둠 속에서 더 높은 저항처럼 작동합니다. 빛의 세기에 따라 저항이 선형적으로 변하기 때문에 LDR은 가변적인 빛 제어와 같은 응용 …

  4. LDR - Light Dependent Resistor | Working, Types, Application

    Nov 27, 2025 · An LDR (Light Dependent Resistor) is a passive component that changes its resistance with the intensity of light. It decreases resistance as light intensity increases.

  5. Light Dependent Resistor (LDR) - Working Principle and Its Applications

    Jul 18, 2019 · 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 …

  6. Light Dependent Resistor: A Comprehensive Guide - Electrical4U

    Jun 18, 2023 · 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 …

  7. Photoresistor / Light Dependent Resistor (LDR) Circuit Explained

    Feb 5, 2025 · 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.

  8. What is LDR? A Complete Guide to Light Dependent Resistors

    6 days ago · An LDR, or photoresistor (also called a photocell or photoconductor), is a passive electronic component whose electrical resistance changes dramatically with light intensity.

  9. Light Dependent Resistor LDR- Symbol, Construction, Working

    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.

  10. Light Dependent Resistors (LDRs) | How it works ... - Electricity

    Oct 26, 2023 · When light photons fall on the LDR, they provide energy to the electrons, thereby moving them into the conduction band and leading to an increase in charge carriers that enhances conductivity.