Light dependent resistors, or LDRs, work by adjusting the amount of current flowing through a circuit in response to the relative abundance of light present in or near a circuit. As the amount of light falling on a light dependent resistor changes, it alters how much it resists the flow of electricity.Know More
Light dependent resistors are frequently used in light detecting devices or those that measure the amount of light present. They are used by a number of different types of professionals, including those involved in security, photography and science.
In some ways, light dependent resistors are similar to other forms of resistors. They change the amount of electricity flowing through a circuit in response to some stimulus. In a potentiometer, such as a volume dial, the stimulus is the dial that the operator turns. For a light dependent resistor, the stimulus is the light level. Light dependent resistors may be designed to stop all electric flow when light is not striking them, or they can be used to gradually reduce the amount of current proportionally to the amount of light striking them.
Also called "photo resistors," LDRs often exhibit a delayed or latent response to light sources. Different photo resistors are designed for different wavelengths and intensities of light. Plated electrodes are the structures inside the resistors that are sensitive to the light energy.Learn more about Electrical
A light dependent resistor, or LDR, varies resistance in a circuit based on how much light shines on it. When fully illuminated, the LDR has no resistance and current flows freely, but with darkness the resistance increases and current flow stops. In most circuit designs, the LDR acts like an on/off switch based on how much light shines on it.Full Answer >
Diverging circuits are a type of neuronal circuit, which control the flow of information in the nervous system. Diverging circuits stimulate several postsynaptic neurons simultaneously, allowing brain signals to travel to various regions of the body.Full Answer >
A circuit breaker trips when the current traveling through the circuit exceeds the rating of the breaker, causing it to become warm and spring open. This occurs when too many electrical devices are plugged into a single circuit. Moving some of the devices to other circuits should relieve the problem.Full Answer >
A doorbell circuit is a low-voltage electrical circuit that causes a chime to ring when someone pushes the button, which is a single pole switch. The circuit receives power from a transformer that reduces 110-volt household current to the 10 to 20 volt power required for the doorbell.Full Answer >