A LDR or light dependant resistor is a resistor that works when light is not shining on it, so if there is light on it it will not resist a current, you can also get them to work the other way.
using a variable resistor we can adjust the sensitivity of a light dependent resistor
yes, a variable resistor
the wire in your light bulb is a resistor :)
If you have a light switch where you can brightener it or dim it that is a VARIABLE RESISTOR.
LDR stands for Light Dependent Resistor. It is a type of resistor that changes its resistance based on the amount of light that falls on it. This change in resistance allows LDRs to be used in light-sensitive applications, such as automatic lighting controls.
A device that uses a resistor to transform electrical energy into light and heat is an incandescent light bulb. The resistor, also known as a filament, has high resistance, which causes it to heat up and emit light as a result of the electrical current passing through it.
The light glows because of the hot Filament.
A night light:)
An LDR is a Light dependent resistor.
K. K.
It is the filament.
A preset resistor, or variable resistor, is used in an LDR (Light Dependent Resistor) circuit to adjust the sensitivity of the circuit to light levels. By varying the resistance, it allows fine-tuning of the threshold at which the circuit responds to changes in light intensity. This is particularly useful in applications like light sensors or automatic lighting systems, where precise control over activation levels is desired. The preset resistor helps ensure optimal performance and responsiveness of the LDR circuit.