0
What else can I help you with?
What is the sensor in your eye that tells you there is not much light?
The sensor in your eye that detects low light levels is called the rod cells. These cells are responsible for vision in dim lighting conditions, allowing you to see in low light.
How much electricity does a security light use in a given period of time?
The amount of electricity a security light uses in a given period of time depends on the wattage of the light and how long it is turned on. The formula to calculate the electricity usage is: Power (wattage) x Time (hours) Energy Used (watt-hours).
What is the speed of electricity or lightning compared to the speed of sound and light?
The speed of lightning is somewhere between that of light and sound which is why most scientists would agree that the speed of light and the speed of sound make a good comparison to that of lightning and electricity.
How much electricity load you can drive on 1 kilowatt?
You could power ten 100 watt light bulbs.
How much electricity does a scalextric use?
A typical Scalextric set uses about 15-20 watts of electricity when in use. This is equivalent to the power consumption of a small LED light bulb.
Which scientist invented motion detectors?
After much more research the real answer I believe is here: http://www.patentstorm.us/patents/4703171/fulltext.html I have found that William Kahl invented the infrared motion sensor for burglar alarms first and then he sent in an application for the infrared light switch motion sensor in 1985. There had been other motion sensor light switches but this specific infrared motion sensor (PIR) is the one that is most used today residentially and in companies as well.
How much percent of the worlds electricity is from light bulbs?
None. Light bulbs use electricity, they do not create electricity.
Why do they say to only use incandescent lights in security lights with motion sensors?
Incandescent light are the only type of light that has a filament. The filament is the the little piece of wire that glows where the electricity passes through it. All other lights are gas filled. Most motion detectors need to pass a small amount of electricity through the filament to work. The motion detector uses the filament as a neutral wire. The time lag to get a florescent bulb to light up would create too much delay and negate the use of the motion detector. The filament will light up very quickly.
Why is it important to make sure that not much light reaches the sensor of a camera?
It is important that the sensor receives the correct amount of light. To restrict the amount of light would produce poor results.
What features does the lg KP500 have?
There is... Touchscreen, Handwriting recognition, motion sensor, drawing panel and much more!
How much electricity does a carrott produce?
It can hardly light a led bulb .
Why does a bulb blow?
Because to much electricity is getting through to the light bulb.
What is the sensor in your eye that tells you there is not much light?
The sensor in your eye that detects low light levels is called the rod cells. These cells are responsible for vision in dim lighting conditions, allowing you to see in low light.
Does cold weather affect motion sensor lights going on and off?
Yes, the temperature definitely affects motion sensors. Motion sensors don't exactly detect motion. The sensor chip is very sensitive to Infra Red signals given off by all objects in front of the sensor. Basically, it really senses temperatures. When it is cold outside, a person, dog, or WARM car will all be much warmer than the surrounding background. Generally, a motion sensor will be much more sensitive in cold weather. It may turn on from something warm moving hundreds of feet away, like a truck, making you think it is turning on all by itself. On a HOT day, on the other hand, a person or dog may not be that different in temperature than the background. In this case, a motion sensor may fail to detect motion.
Is light the same as electricity?
Electricity is not the same as electric light. Electricity is the flow of electrons from one atom to the next. As electrons travel through the filament of a light bulb the resistance of the filament opposes the flow of current, which creates heat. The filament will heat up so much that it produces a visible light.
How much does it cost to install motion sensors in a home?
The equipment and materials required to make your own motion sensor far exceeds the cost of purchasing one off the shelf.
Is electricity the same as electric light?
Electricity is not the same as electric light. Electricity is the flow of electrons from one atom to the next. As electrons travel through the filament of a light bulb the resistance of the filament opposes the flow of current, which creates heat. The filament will heat up so much that it produces a visible light.
