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The w means watt. It is a unit of measurement that quantifies the energy given off by the globe when it is switched on.
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∙ 13y ago
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Why is a 100 watt bulb brighter than a 25 watt bulb?
Because it takes more current and power and produces more light power. Running a 100 w lamp costs 4 times more than a 25 w lamp.
Why does it require more work to light a 100 W light blub than it does to light a 150 W light blub?
It doesn't, and we can't imagine where you got that idea. A light bulb that's operating at 150W is dissipating 50% more energy (work) than a bulb operating at 100W. Could it be that someone had you on a bicycle, pedaling furiously to turn a generator and light some light bulbs ? If so, that's such an uncontrolled experiment, with so many variables involved, that you really can't draw any conclusions from what you saw, except for the fact that it takes work to generate electrical energy.
How much candle power in a 100 w bulb?
About 1570.9
What is the resistance of a 60.0 W light bulb in a household circuit roughly?
Power = (voltage)2/ResistanceResistance = (voltage)2/(Power)The standard household voltage in North America is 117 V.Resistance = (117)2/(60) = 228 ohms (rounded)
What is the relationship between the energy in light and the frequency of light?
E=hf and E= (hc)/w E=energy h=planck's constant f=frequency of light c= speed of light w= wavelength of light (normally represented by the greek letter lambda)
What does it mean by writing V and W in a bulb?
V on a light bulb means volts. W means watts.
On a Volvo 850 Wagon what does the indicator light with the light bulb w an exclamation point mean?
it means that a bulb is burned out
A typical light bulb in your house is rated 60 W which means that the bulb dissipates 60 W when connected to a DC voltage of 110 V What is the currrent?
P=VI 60W = 110V x I I=0.54* A Hopefully in your house you are connected to 110 VAC and not DC. Same answer as above applies.
How much energy do you save per hour if you replace a 60 W light bulb with a 55 W light bulb?
18,000 J
What size bulb do you need for a reverse light on a w reg 2000 fiesta?
what size of bulb do you need to replace a reverse bulb in a w registration fiesta
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.
How many lumens in a 60 watt incandescent bulb?
That depends a LOT on the technology used - some technologies are much more efficient than other (converting a higher percentage of the power used into visible light).
Two lamps A and B are rated 60W 220V and 100W 220V respectively so why does the answer say that when connected in parallal bulb A is brighter?
In parallel, they both obviously have 220 v across them, so the 100 W bulb is obviously brighter than the 60 W one. The 60 W bulb has more resistance, and in series they both have to pass the same current, so the 60 W has more voltage across it and might be brighter.
What one is brighter a 60 watt light bulb or a 100 watt light bulb?
If the two bulbs use the same technology the 100 w bulb is 10/6 times brighter than the 60 w. Incandescent bulbs give about 10-12 lumens per watt Halgogen gives about 15-18 lumens per watt CFL (low-energy) gives about 50 lumens per watt.
The power delivered to the light bulb is 23.1 W. What are the two possible resistances of the light bulb?
A: HARD TO SAY because a bulb has different resistance as it warms up
How many joules does it take to light a 60 watt light bulb for an hour?
60W = 60J/sec = 3600J/min = 216,000J/hr or 60W x 1hr = 0.6kWh = Your kWh rate * 0.6 If my kWh rate is $0.05 then it costs $0.03 to power a 60W bulb for an hour, other charges may apply in your area, you will have to look at your bill
When 60 W means that W joules of energy are transferred into the bulb each second. In use how much energy is given out by the bulb each second?
The light bulb will use electrical energy at the rate of 60 W (60 J/s), and it will emit that energy, also at the rate of 60 W.Note that in any real light bulb, only part of the energy is emitted as visible light. The remainder is mainly heat.
