Im in year 10 and we are learning about Light Dependant Resistors. i have to write about 3 paragraphs on how a LDR controls a digital camera shutter. Can anyone give me a website with some useful info or give me an answer many thanks
2007-10-26 10:21:51 · 2 answers · asked by spikey255 2 in Education & Reference ➔ Homework Help
Light-dependent resistors (LDRs) have a resistance which changes in response to changes in light levels, as detected by a photo-sensitive plate on the resistor. Most LDRs have a negative light coefficient - meaning that their resistance falls as the amount of light falling on them increases. LDRs are used in light-detection circuits.
This website has a diagram:
www.technologystudent.
com/elec1/ldr1.htm
2007-10-26 10:26:53 · answer #1 · answered by Frosty 7 · 0⤊ 0⤋
try www.howstuffworks.com
2007-10-26 11:01:55 · answer #2 · answered by calebrules1991 5 · 0⤊ 0⤋