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When a current flows through Mercury vapor, it produces light through a process known as gas discharge. The electric current excites mercury atoms, causing them to emit ultraviolet light as they return to their ground state. This ultraviolet light then interacts with the phosphor coating on the inside of the lamp, producing visible light. This phenomenon is commonly utilized in fluorescent lamps and mercury vapor lamps.
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What is a working principle of mercury vapour lamp in 4 to 5 lines?
Mercury vapour contained in an evacuated glass bulb.Vapour warmed.High voltage applied to electrodes inside lamp.Vapour conducts and allows current flow, excitation causes vapour to glow brightly.Little or no resistance, so requires a ballast in line.
What is vapour liquid equilibrium data?
when number of molecules into vapour state from liquid state is equal to number of molecules going from vapour to liquid equilibrium is said to have been established
What role does a compessor play in a refrigeration system?
In vapour compressor refrigeration system the low pressure and temperature vapour refrigerant from evaporator is compressed. where it is compressed to a high pressure and temperature. From compressor refrigerant goes to condenser where where it changes the phase. from condenser refrigerant goes to evaporator through expansion device.
How do you calculate the efficiency of vapour absorption machine?
how to calculate the vapour absorption mechine efficiency and per TR steam consumption
Unit of water vapour diffusion resistance factor?
unitless
What process the mercury vapour produces light Inside a fluorescent tube?
When electricity passes through the tube, it excites the mercury vapour inside, causing it to emit ultraviolet (UV) light. The UV light then interacts with phosphor coating on the inside of the tube, causing it to fluoresce and produce visible light.
What is one way in which you can identify the elements that are used in various street lights?
By the colour of the light that they emit. Sodium vapour lamps produce yellow/orange light while Mercury vapour lamps produce white light.
Will mercury vapour work in a sodium vapour fixture?
no
Is Mercury vapour compressable?
Any vapour is compressible.
What is a working principle of mercury vapour lamp in 4 to 5 lines?
Mercury vapour contained in an evacuated glass bulb.Vapour warmed.High voltage applied to electrodes inside lamp.Vapour conducts and allows current flow, excitation causes vapour to glow brightly.Little or no resistance, so requires a ballast in line.
What actors and actresses appeared in Mercury Vapour - 2008?
The cast of Mercury Vapour - 2008 includes: Clough Rachel as The Girl
When mercury boils is a gas produced?
Yes, mercury vapour.
Why are low pressure mercury-vapour lamps coated with phosphors?
Low-pressure mercury-vapour lamps are coated with phosphors to convert the ultraviolet light emitted by the mercury into visible light that is more useful for general lighting purposes. This process allows the lamp to produce a broader spectrum of light, making it more appealing and efficient for human vision.
Why mercury lightis off after some time?
due to condensation of mercury vapour
What has the author William Harold McCurdy written?
William Harold McCurdy has written: 'The striated discharge in mercury vapour ..' -- subject(s): Electric discharges through gases, Mercury
Fluorescent lamp low pressure mercury vapour?
Fluorescent lamps contain low-pressure mercury vapor that produces ultraviolet light when an electric current passes through it. The ultraviolet light then interacts with a phosphor coating on the inside of the lamp, causing it to emit visible light. This process is more energy-efficient than traditional incandescent lighting.
Use of choke in tubelight?
Choke has got two functions. Initially it raises the ac voltage to some 350 V so as to initiate the discharge of electricity through mercury vapour. Once the discharge becomes activated then low voltage about 110 V is enough to maintain the discharge through mercury vapour. This is supplied by the same choke.
