relation between lux and candla
It all depends on its condition
First you must calculate the fixture unints that are needed then based on the FU you can then increase the soil/ waste line to allow the needed pitch for the fixture unit value
find the value of Y and X
A car value calculator functions to calculate the current resale value of a car. They will also calculate the current value of a van, light truck or SUV. So perhaps they should be called vehicle value calculators instead.
there is no written rule that I am aware of, but common sense would indicate the bottom of the fixture should be at least 18" above the head of a 6ft tall person
2.18*10^-18 j
Yes, contained within the fixture body is a transformer that boosts the voltage to the required value that is needed to ignite the lamp starter.
How do you calculate the actual cash value of a home
Depends on the fixture unit value I was looking for and the diameter of the piping involved
No
how we can calculate the gram chlorific value of an furnace oil pl answer me i will thank full to you
Lumens is the total amount of light a light source (a light bulb, for instance) throws in all directions. Lux (lumens per square meter) can measure how intense light from that light source is when looking toward it from a certain distance. Lux depends greatly on how far away you are from a light source. At any given instant, light is thrown from the source in a perfect sphere.If you are trying to calculate how many lumens your light bulb shines and you have a light meter that gives you lux, point your meter at the light, then take your lux multiply by 12.57 (pi times 4). Then, multiply this by the distance of your light meter from the light bulb (in meters) squared. That will give you the lumens of the light bulb. In equation form, where lm is lumens, r is your distance from the light source, and pi is (come on) about 3.14, lux=lm/(pi*4*(r^2)), or lm=lux*pi*4*(r^2). The (pi*4*(r^2)) part is used to calculate the surface area of a sphere around the light source.Note: this calculation does not account for reflected light, and will only work on an exposed light bulb. Lights housed in a reflective cone (like in a flashlight) are designed to project light in one direction and (within the spot where light is projected) will have a lux much higher at any given distance than if the light bulb wasn't housed in a cone.