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What is the approximative power factor of an incandescent lamp?
Wiki User
∙ 7y ago
Incandescent lamps are nearly pure resistive loads with a power factor of 1
Wiki User
∙ 7y ago
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What light sources emits only a continuous spectrum a. hydrogen gas b. mercury lamp c. sodium lamp d. incandescent lamp e. laser?
d. incandescent lamp
How many lumen in a 25 watt incandescent light bulb?
a 100W incandescent lamp emits 120 candela.lumen is the unit for luminous intensity per steradian ,an lamp emits in all directiontherefore a 16.25watt lamp contains 19.5 lumenAnswerThe lumen is the SI unit for luminous flux -which describes the output power of visible light expressed in photometric units. The ratio of a lamp's output luminous flux to its input power is termed 'efficacy', expressed in lumens per watt. The efficacy for incandescent lamp varies from 5-15 lumens per watt. So the output of a 16.25-W incandescent lamp will be between 80-245 W.
What is the function of a capacitor in a fluorescent light fitting?
A capacitor is used to improve the power factor of the lamp.More detailsTo prevent the lamp from taking too much current a fluorescent lamp has to have a choke, which has magnetic inductance. The inductance has a negative impact on the power factor of the (the ratio between apparent power and real power taken by the lamp) - i.e. the power factor is reduced - so a capacitor is used to compensate for the inductance by improving the power factor so that it is closer to the ideal value of 1.Basically the inductor with the capacitor smooths out the voltage or current.
If a incandescent lamp is connected to a 12-v lantern battery if the current flow is 8.5mA how much?
How much what? Power? 102mW (0.102W). How much light? A filament bulb produces 1 to 3 percent of the power input as light if the proper voltage is applied. If the lamp is rated for a higher voltage, it won't get hot enough and the light out will be a lot less.
How do you calclate power factor?
p.f=kW/kV.A
What is the most economical incandescent bulb 10 watts or fluorescent lamp 10 watts and why?
the most economical is the incandescent bulb because the power of bulb is low only while the fluorescent lamp is low and additional the power of ballast from 10%-20% power consumed.but the fluorescent lamp is 5 times brightly the incandescent bulb.
What can an incandescent test lamp is used to check?
An incandescent lamp can be used to check continuity of a circuit.
What light sources emits only a continuous spectrum a. hydrogen gas b. mercury lamp c. sodium lamp d. incandescent lamp e. laser?
d. incandescent lamp
Why do the readings differ for increasing and decreasing values of the incandescent lamp voltages?
...what readings? current? voltage? power? lux?
Is CO2 emitted by incandescent bulb?
No, carbon dioxide is not emitted by an incandescent lamp.
How many lumen in a 25 watt incandescent light bulb?
a 100W incandescent lamp emits 120 candela.lumen is the unit for luminous intensity per steradian ,an lamp emits in all directiontherefore a 16.25watt lamp contains 19.5 lumenAnswerThe lumen is the SI unit for luminous flux -which describes the output power of visible light expressed in photometric units. The ratio of a lamp's output luminous flux to its input power is termed 'efficacy', expressed in lumens per watt. The efficacy for incandescent lamp varies from 5-15 lumens per watt. So the output of a 16.25-W incandescent lamp will be between 80-245 W.
Why is an incandescent lamp cool to the touch when it gives off heat?
An incandescent lamp is not cool to the touch unless it is an extremely low wattage. Heat given off by incandescent lamps is one of the drawbacks of the lamp. Total overall efficiency is reduced by the wasted heat.
Why was the incandescent lamp not used in homes?
The incandescent lamps are very frequently used in all the buildings !
Why are incandescent lights used?
Incandescent light are used for general purpose lighting. These types of lamps waste energy in the form of heat. Their replacement types now in the marketplace are new LED lamps which draw 1/4 the power of an incandescent lamp.
Who was rewarded for his patent incandescent lamp?
Alexander Lodygin
Where did Edison invents a practical incandescent lamp?
1859
What was the first name of the light bulb?
The Incandescent Lamp
