0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What is power broadening in lasers?
Power broadening is an effect whereby the line-width of a laser is broadened by the laser intensity itself. Higher laser intensity leads to a larger line-width. This can be explained by considering the decay rate of atoms from the upper to lower laser level. As the laser intensity increases, this decay rate (which is linearly related to the line-width) increases due to stimulated emission.
What is smearing effect?
Smearing effect can be defined as a vertical line that will be seen from a bright light. This effect is achieved where there is motion involved in imaging.
How does engery get from a power plant to a house?
through a power line : )
How much power can a transmission line carry example how much power can a 69kv line carry compared to a 390kv line what is the formula for power capacity of a hvac line?
For a line of given cross section and material, the power capacity will depend on the current carried, since resistance heating is proportional to (current)2 . For a given power, current is inversely proportional to voltage. Thus raising the voltage from 69 to 390 kv would reduce the current by a factor 69/390 = 0.177 , for the same power transmission, and reduce the heating losses by 0.1772 = 0.031. So you can see why high voltage for long distance lines is essential. Obviously the limiting current on a power line has to be set by economic and practical considerations, but if this is predetermined and set, the limiting power will be that which produces that limiting current, and power = voltage x current. The actual limiting curent will depend on the line cross section, material, and length. The power that a line of a certain voltage can carry is calculated by using the following formula: (2.55×(KV)2 /1000) MW.
Why do birds sitting on a power line not get electrocuted?
Because they are not touching the ground.
What is the importance of leviathan?
Leviathan is important because it demonstrates a view of human nature that depicts humans as power-hungry, demoralized beings that can only be kept in line by society and the fear of punishment that goes with it.
Why can't human beings sit safely on electric power lines?
Theoretically, human beings can sit safely on an individual overhead line conductor, providing no part of their body comes into contact with another conductor or the earth. In practise, of course, it's another story as it's highly improbable that anyone could approach a high-voltage line in the first place!
What Effects high tension power line on human being?
It causes brain tumor
What is the effect of poor power factor?
See discussion page before answering then delete this line.
How often do Mexicans eat?
Mexicans are humans beings and human beings do require food to survive. However there are people in Mexico, as there are in most countries, living under the poverty line. Therefore those people might not get to eat 3 meals a day, they might even have to go for a couple days without food.
What makes a power line work?
A power line works by electrons flowing through from power line to power line but if something interferes with the power lines the flow of electrons will not work. (flow)
Human beings who are almost unique in having the ability to learn from the experience of others are also remarkable for their apparent disinclination to do so?
Human beings have the unique capacity to learn from the experiences of others, but they often choose not to do so. This may be due to a variety of factors such as individual pride, the desire for firsthand knowledge, or a belief that their own experiences are more valid. This paradox of human behavior highlights the complexity of learning and decision-making processes.
What is a Line Commutating Choke?
Line commutating chokes are used to smooth voltage peaks or bridge commutating dips. In effect, this reduces the effects of harmonics on the inverter and power supply. A line commutating choke is necessary to reduce current peaks if line impedance is <1%
Why cant human power is not hooked up to our tv's to generate our own power?
You can use human power to run your TV. Use a stationary bike tied to a generator. In the TV show "Living with Ed", Ed has just such a setup to generate power to make his toast. Google Bike Generator Plans to see some ideas on-line.
Where do power line birds nest?
Atop the power line poles.
Which mode of transmission would result in less energy loss high current and low voltage or low current and high voltage Explain your reason?
low current high voltage power dissipation in power line = I2R the resistance of the power line is hard to reduce, especially when it is a long transmission line. but reducing the current through the line reduces losses as the square, a dramatic savings. reducing voltage would have no effect and would dramatically increase losses due to increase in current to try to deliver same power.
Why does the human body have a line of symmetry?
4 line of symmetry
