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If you operate an incandescent light bulb at less than its rated voltage?
Wiki User
∙ 13y ago
Since an incandescent light bulb is an appliance that has a fixed electrical resistance, operating it at less than its rated voltage means that it will draw less than its rated current and will produce less light.
Wiki User
∙ 11y ago
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WILL 103 VOLTS LIGHT A 60 WATT LIGHT BULB?
Yes, a 103 volt source will light a 60 watt light bulb. The relationship of the bulb's wattage output at a lower voltage, as to the normal voltage that the bulb is rated to operate on, the light output will be lower.
Does a 25 watt light bulb draw more current than a 60 watt light bulb?
No, a higher wattage INCANDESCENT light bulb uses more current than a lower wattage INCANDESCENT light bulb. Some CF and LED bulbs are rated by the amount of light that an incandescent bulb would produce, but they are also rated by the wattage that they use.
A 100-W light bulb is turned on it has an operating voltage of 120 V how much energy is used each second?
A lamp will only operate at its rated power when subject to its rated voltage. So, provided your lamp is operating at its rated voltage (120 V), it's power will be 100 W, which means its consuming energy at the rate of 100 J/s.At any other voltage, its operating power will change, and the rate at which it consumes energy will change too.
Can a 277 volt light operate from a 240 volts power system?
The metal halide light is a commercial fixture. Wire it to 120 volt. 277 volt is the star point voltage of 3 phase 480 volts. Likewise 347 is the starpoint of 3 phase 600 volt. By wiring it to 240 volts the voltage might not be high enough to ignite the lamp. Try it and see, it won't do any harm to the fixture. Make sure that the wires that are not connected are taped off as there will be voltage on them.
How much amp is needed for a 40 watt light bulb?
If that's a continuous load of 40 watts, you need quite a large battery, depending on how long the demand is. Car batteries supply more than 40 watts when running the cars lights when the car's ignition is switched off, so I guess something like a motorcycle battery would suffice.
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 highest voltage rated breaker an electrician can operate?
An electrician does not operate breakers he installs them.
What happen to lamp if over voltage?
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.
Why is that when an electric bulb stay just as its bright when connected to a parallel circuit?
To operate at its rated power, a lamp must be subject to its rated voltage (the supply voltage). As each branch of a parallel circuit is subject to the same voltage (the supply voltage), each lamp will operate at its rated power.
WILL 103 VOLTS LIGHT A 60 WATT LIGHT BULB?
Yes, a 103 volt source will light a 60 watt light bulb. The relationship of the bulb's wattage output at a lower voltage, as to the normal voltage that the bulb is rated to operate on, the light output will be lower.
Why do light bulbs glow differently in a series circuit than in a parallel circuit?
Lamps will only operate at their rated power when subjected to their rated voltage -which is why you will see both figures shown on the glass envelope (e.g. 60 W / 230 V or 60 W / 120 V, etc.). If you connect lamps in parallel, because each branch is subject to the same voltage (i.e. the supply voltage), each lamp has the same voltage applied and will operate at its rated power. If you connect lamps in series, the supply voltage will distribute itself as a series of voltage drops where the sum of the voltage drops will equal the supply voltage. So none of the lamps is subject to its rated voltage, so none will operate at its rated power -i.e. they will be dim!
What is meant by rated voltage?
the voltage which is mainly applied to primary side of the transformer is called rated voltage.Answer'Rated voltage' is the nominal voltage at which an electrical device has been designed to operate.
What is the general resistance of a tungsten filament?
The resistance of the filament in a light bulb is(voltage at which the bulb is designed to operate)2/(the rated power/watts of the bulb)
Does a 25 watt light bulb draw more current than a 60 watt light bulb?
No, a higher wattage INCANDESCENT light bulb uses more current than a lower wattage INCANDESCENT light bulb. Some CF and LED bulbs are rated by the amount of light that an incandescent bulb would produce, but they are also rated by the wattage that they use.
Are bulbs in parallel brighter or bulbs in series brighter?
Lamps connected in parallel are subject to the same voltage. Provided this voltage corresponds to the lamps' rated voltage, then each lamp will operate at its rated power and at its full rated brightness.Individual lamps connected in series operate below their rated voltage (the sum of the voltage drops around a series circuit equals the supply voltage) and will, therefore, operate below their rated power and brightness. The lamps will vary in brightness; those with the lower power ratings will be brightest and those with the higher power ratings will be least bright.
Shouldn't a lamp always be able safely to accept up to a 40W compact fluorescent light bulb if it is rated to accept a 40W incandescent light bulb--barring any physical size contraints?
Yes, your assumption is correct. Lamp fixtures are rated on how well they dissipate the heat given off from an incandescent light bulb. As CFL lamps run much cooler there is no problem using them in the same rated fixture that is incandescent rated.
In a parallel circuit how is the brightness of the light bulbs?
the bulbs would be very bright seeing as the two or more light bulbs have very easy excusable paths for electricity to flow and get to the light bulbAnswerBecause the voltage across each branch of a parallel circuit is the same, each lamp will be subject to its rated voltage and, therefore, will operate at its rated power output.
