0
A lamp will only operate at its rated power if it is subjected to its rated voltage. Increase that voltage will increase the power of the lamp -in other words, it will operate more brightly. This is how 'photoflood' lamps operate -they are deliberately designed to operate at overvoltage. Of course, this reduces the life of the lamp.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
How does changing voltage across a lamp affect the power consumption of the lamp?
because it does!
A 40W bulb or a 60W bulb will glow more brighter if connected in series?
The 40-W lamp will be the brighter, because it has a greater resistance that the 60-W lamp and, therefore, will experience a greater voltage drop across its terminals. The closer the voltage drop is to the lamp's rated voltage, the brighter it will be.
What happens when a light bulb is connected to the output coil of the transformer?
Assuming that the voltage rating of the lamp matches the rated secondary voltage of the transformer, the lamp will operate at its rated power.
What is the voltage drop across each lamp?
To answer this question a supply voltage must be stated. Also the wattage of the lamps is needed.
How many volts is used in a 100 watt light bulb?
The voltage isn't decided by the lamp, but by the supply the lamp is hooked up to.
How do you change operating voltage of metal halide lamp from 240 to 120?
The lamp needs to be rated for the voltage applied to it. The fixture in which the lamp is installed also needs to be rated for the voltage. So, it is not a matter of changing the lamp, it is a matter of having the fixture and lamp that are properly rated for the voltage that you are applying to it.
What will happen when two phases are given as input to an incandescent lamp?
its burn that lampAnswerI assume that you mean 'two lines', as you cannot connect anything across 'two phases'! The answer is that it depends on whether the line voltage exceeds the rated voltage of the lamp; if it does then the lamp will either burn out immediately, or have its life considerably shortened. If it doesn't then the lamp will operate normally or may even be dim. It's all to do with the rated voltage of the lamp, now how it's connected!
What voltage mercury lamp works?
the supply voltage to a mercury vapour lamp (from the electromagnetic ballast) is 130vac
What happen when 220v ac lamp connected to220v dc?
All a.c. voltages and currents are expressed in root-mean-square (rms) values. An rms voltage of 220 V is exactly equivalent to a d.c. voltage of 220 V. So the lamp will function quite normally at either voltage.
How does changing voltage across a lamp affect the power consumption of the lamp?
because it does!
What will happen to phone when you charge it with over voltage?
the battery will stop working.
In a circuit of two lamps in parallel if there is a voltage of 6 V across one lamp what is the voltage across the other lamp?
6 Volts.
Why are condenser adjustments generally preferred over the use of the voltage control?
"When increasing the lighting, be sure to open up the diaphragm first instead of increasing the voltage on your lamp; the reason is that lamp life is greatly extended when used at low voltage." Source: Benson Microbiological Applications 11th edition pg.7
Why are condensers adjustments generally preferred over the use of the voltage control?
"When increasing the lighting, be sure to open up the diaphragm first instead of increasing the voltage on your lamp; the reason is that lamp life is greatly extended when used at low voltage." Source: Benson Microbiological Applications 11th edition pg.7
Why do the voltage drops of an inductor and a lamp in a series ac circuit not equal the applied voltage?
The voltage is greater than the applied voltage, why?
Why a lamp cannot run with the telephone line voltage?
A lamp can be run by power from a telephone line.
Why does a 25 watt bulb glow brighter than 60 watt in a series circuit?
Because the filament of a 25-W lamp has a higher resistance than that of a 60-W lamp and, therefore, will experience a greater voltage drop -the lamp with the voltage drop closer to its rated voltage (in this case, the 25-W lamp) will be the brighter.
