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For a given amount of power, the higher the voltage the lower the current. This is necessary to minimise the voltage drop along the transmission line, and to reduce energy losses which are proportional to current squared.
The advantage of transmiting electrical power at high(er) voltages is that you can use smaller conductors, since the current flow would be less for the same amount of watts. Watts = Volts times Amperes
What else can I help you with?
If AC means alternating current used to light up a bulb and alternating current moves up and down then why does light emitted from that bulb not alter to give us first a low light then a bright light?
Electric light bulbs use electric current to heat a filament to high temperature which produces electromagnetic radiation which appears to us as as "heat" in the invisible part of the frequency spectrum and "light" in the visible part. The alternating current (AC) voltage waveform changes at a frequency of 50 or 60Hz (cycles per second of a sine wave) depending on which country you live in. The filament stays heated from cycle to cycle of the AC voltage waveform - the highs and lows of the AC waveform are so close that the filament does not have time to cool off much. It thus seems to emit light continuously for us and we don't notice any reduction in light. One reason contributing to this is the persistence in vision of the human eye - we see anything happening at frame rate of 20 or more per second as continuous. If it were at a slower frequency of AC we would notice the changes in light intensity which occur at the different levels of voltage in the ac waveform.
How many levels are there in Angry Birds Rio?
There are 9 levels. 3 levels of each of the 3 environments.
How do you unlock levels on Mario Kart Wii?
Get at least third in the levels you got.
How many electrons levels does potassium have?
Potassium is in the 4th period and has 4 energy levels.
How many electron levels in gold?
Gold is in period 6, so it has six main levels.
What are the disadvantages of transmitting electric power at high voltage levels?
The main disadvantage is that high voltage causes surrounding air ionization and may cause negative health effects for people close by. However, electric losses will be less when electricity is transmitted at high voltage. The higher the voltage the less the electric losses.
What are Advantages of ac generation?
The advantages of AC generation include easier voltage transformation using transformers, lower energy losses over long distances due to lower currents, and the ability to easily control voltage levels to meet various load demands. Additionally, AC power is more efficient for powering electric motors and most consumer devices.
What is the voltage range at which power is transmitted?
CSA C235-83-CAN3 Preferred Voltage Levels for AC Systems, 0 to 50,000 V Electric Power Transmission and Distribution
How many voltage levels does a digital systems need?
number of finite voltage levels
How are signals converted from voltage levels to their corresponding decibel equivalents and from decibel levels to their corresponding voltage or current levels?
Scroll down to related links and look at "Conversion Voltage V to voltage level Lu and LV - Decibel (dB) level conversion to volt ".
Why is electical power transmitted with high voltage?
For a given load, the higher the supply voltage, the lower the resulting load current. So, by transmitting electrical energy at very high voltages, the load current will be low enough to: (1) reduce line voltage drops to managable levels (2) allow the use of cables of practical sizes (3) minimise line losses
Can a a electric substation in a city use transformers to increase the power output?
No! A transformer changes voltage levels, not power levels. In fact, the output power of a transformer is actually a little lower than its input power, due to the efficiency of a transformer.
How is the voltage for homes shipped to a home?
Voltage isn't "shipped", really. Generator terminal voltage is typically in the range of 10-30kV; they are connected to the bulk electric system by step up transformers that convert this 10-30kV into voltage in excess of 100kV for power transmission. Near your home, this voltage is again stepped down to sub transmission voltage levels, then distribution voltage levels. The small power lines near your home are probably distribution level power lines (often 2 - 20kV); these will have a center tapped step down transformer to connect your home, at 120volts, to the grid.
What things produce a big charge?
Some things that can produce a large electric charge include lightning strikes, powerful electric generators, Van de Graaff generators, and charged particle accelerators. These devices are capable of generating high voltage levels that result in significant electric charges.
Can electric fields be harmful?
Yes, electric fields can be harmful at high levels. Exposure to strong electric fields can result in electric shock, burns, and other serious injuries. It is important to follow safety guidelines and regulations to minimize the risks associated with electric fields.
Why doesnt electric fences kill?
Electric fences are designed to deliver a short, sharp shock that is uncomfortable but not life-threatening to deter animals from crossing the boundary. The current and voltage levels used are typically low and regulated to be safe for animals and humans. Additionally, the electric pulses are intermittent and not continuous, reducing the risk of sustained exposure that could lead to serious harm or death.
What is 232 in RS232 and MAX232?
The difference between max232 and rs232 is the voltage levels of the rs232 are high. In order to reduce those voltage means to convert those voltage levels to TTL logic levels we use max232 integrated chip which is a dual driver/ receiver.
