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How are street lights switched ON automatically on a cloudy afternoon?
Wiki User
∙ 16y ago
streetlights have whats called a photovoltaic cell on top of there casings,this cell works by using sunlight to generate a little current,when there is less sun it will generate less electricty,when it generates less than a certin current it will triger a switch in the streetlight,when the sun comes back out bit by bit it will generate current again until a certin point which is related to how bright the sun is shining and then the light will turn back off
Wiki User
∙ 16y ago
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Why lights in a house often dim when a motor like washing machine is turned on?
Simply because of the extra drain on the circuit. When a high-current device like a washing machine is switched on - it creates a temporary 'dip' in the power supply around the building. The mains supply compensates for the extra load on the circuit fairly quickly - but it's still noticeable by the dim lights.
When a motor car is started its light becomes slightly dim Why?
Before starting, if the lights are switched on, all of the current from the battery is going to the lamps, but quite a lot of electrical power is required to start the engine, particularly if the oil is thicker because it is cold. When the engine starts it drives the dynamo or alternator which sends extra current to the battery which can then send more current to the lights.
Why are there red flashing lights on wind turbines?
The Red lights on top of wind turbines are anti-collision lights for aircraft.
How do flashing lights affect balance?
Flashing lights might affect the balance by causing a person to feel unsteady or confused when confronted by these lights. Flashing lights can also cause seizures that affect balance in some cases.Ê
What kind of light is emitted by growing lights?
The light that is emitted by growing lights is a light that can closely mimic that light and warmth of the sun. These lights are considered HID lights and emit a more intense light than a florescent light.
What is a time delay relay function used for?
A time delay relay is used in applications that have a need to be automatically switched on and off. A few applications that require time delay relays are strobe lights, stoplights, and Christmas tree lights.
Repair Fog Lights?
form_title=Repair Fog Lights form_header=Repairing your fog lights does not have to expensive or time consuming. Have you noticed any problems with your fog lights?=_ Are you lights clear or are they cloudy?= () Clear () Cloudy Have you been involved in any accidents that might have affected your fog lights?= () Yes () No
Can you shut off a cops lights by putting a car into neutral?
No. The lights are switched independently of the transmission.
What date do barnsley Christmas lights get switched on?
on 25 december
Who switched on the Christmas lights in Bradford 2008?
cheryl cole
Is a 2001 s-10 Positive Switched or Ground Side Switched?
Mostly positive side switched but it has a couple ground side switches also such as the courtesy lights.
The obstruction lights are turned on .?
automatically manually
Which DJ switched on Barnsley's Christmas lights?
Hirsty from Galaxy FM
What is a lamps open circuit?
It is the thing that lights up when power is switched on.
Which fuse operates the left brake lights on a 2003 Toyota Highlander you switched the left right brake lights and they work on the right side?
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How does outdoor solar lighting get power during cloudy days?
Solar lights still receive some sun light on cloudy days. Many are able to store power from previous sunny days and continue working through a few cloudy days before needing more sun light to power them. http://www.livestrong.com/article/170281-do-solar-lights-charge-on-a-cloudy-day/
My 1987 Saab gauge lights stay on?
That is correct. On 1987 and later 900s the dashboard lights come on whenever the ignition is switched to ON.
