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What did swan invent in 1883?
Sir Joseph Wilson Swan is credited with inventing the first practical incandescent light bulb. His was the first house to be lit using such a light bulb.
If a light bulb is connected between 2 wires and both wires have 300 volts of electrical energy is the light bulb lit?
A light bulb connected between to wires, each having 300 volts to ground that are in phase, will not light, because there is no differential voltage available to do any work. If each wire has 300 volts to ground and are out of phase (600 volts between them) the light bulb will be lit, if it is rated at least for 600 volts, otherwise it will burn out.
How many kilowatt do 100 watt bulbs use?
That depends both on the light bulb's power rating, and how long you want to light it! Use the formula: energy = power x time If the power is in watts and the time in seconds, then the energy will be in joules (= watt-seconds). Alternately, if the power is given in watts, you can divide by 1000 to convert to kilowatts. Then, if you multiply by hours, you get kilowatt-hours. Note that the unit used by utility companies tp charge you is kilowatt-hours.
How to Find the burn out light bulb on parallel series?
A burned out light bulb has high resistance - it is open - so, in a series circuit, it will have full supply voltage across it while the other bulbs in the circuit have zero volts. In a parallel circuit, just look and see which bulb is not lit.If you are talking about Christmas tree lights, however, they are generally designed to short out when they burn out, so that bulb goes dark while the others stay lit, even in a series circuit. The down side of that design is that the remaining bulbs will get brighter and hotter, and they will tend to burn out faster.
Why does a bulb in a circuit not work?
A light bulb is not lit when the swtich is not connected to the wire becasue there is no flow of electricity, specifically, flow of electrons. By disconnecting the wire, the bulb is no longer connected to the electricity source.
How much work does a 100-watt light bulb do when it is lit for 30 seconds?
The work done by a 100-watt light bulb when lit for 30 seconds can be calculated using the formula work = power x time. Power = 100 watts, Time = 30 seconds. Work = 100 watts × 30 seconds = 3000 joules.
If a 100 w light bulb is lit for 8 hours each day for W days in a month many kilowatt-hours will the bulb consume?
Convert the 100 watts to kilowatts. Calculate the total time in hours, and multiply by the number of kilowatts that the light bulb uses.
How many 50 watt light bulbs equal 1 megawatt?
This depends on the wattage of each bulb. If each bulb is, say, 100 watts, you can power ten thousand bulbs. To calculate for your own bulbs, divide 1,000,000 watts by the wattage of each bulb.
How much work does a 100-watt light-bulb do when it is lit for 30 second?
3000 joules(J)
How much work does a 100-watt light bulb do when its lit for 30 seconds?
3000 joules(J)
What did the new light bulb say to the old light bulb?
your not very bright... im just guessing
What kind of light bulb will be lit by 5 volts?
Um, a 5 volt light bulb?
When the light bulb is lit electrical energy is changed into light energy and?
When lighting a light bulb, it is changed into light and heat/thermal energy.
For how many hours did Thomas Edison's light bulb stay lit?
66
Is a lit light bulb exothermic or endothermic?
Exothermic, as the reaction is releasing heat into the surroundings.
How many days did Edison's best light bulb stay lit?
Edison's best light bulb stayed lit for around 40 hours. This experiment took place in 1879.
What uses more electricity a lit light bulb or an empty socket of the same rating switched on?
When the bulb is lit it uses energy. When there is no bulb, no energy is used even if it is switched on.
