What is a Light Dependent Resistor?A light-dependent resistor is defined as a device whose resistance decreases with increasing light intensity and increases with decreasing light intensity. The resistance of an LDR can range from a few ohms to several megaohms, depending on the type and quality of the material used and the ambient temperature.The symbol for a light-dependent resistor is shown below. The arrow indicates the direction of light falling on it. How Does a Light-Dependent Resistor Wo