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Transmission lines use alternating current in order to support stepping-up and stepping-down of the voltage with Transformers. Voltage is stepped-up at the power station, sent over the transmission lines, and stepped-down at the receiver. (This is a simplified explanation.) By stepping-up, you reduce the current carrying requirement of the lines, and they can thus be smaller.
You could not do this with direct current as transformers only work for alternating current.
What else can I help you with?
What does a transmission system at a radio station use to convert a direct current into a high frequency alternating current?
a high power, often class C amplifier.
Can you use the compass under the power lines?
If the power lines were Direct Current, sometimes used for efficient long distance transmission, then your compass would definitely be affected, and may be quite useless. The high currents in such a long distance DC line will generate a magnetic field. With an Alternating Current power line, the alternating current itself should not cause any problem with the compass, but the steel of the towers themselves may certainly do so.
What is use of rectifier?
Rectifier is used to convert alternating current to direct current.
What kind of energy source does a transformer use?
Electrical (alternating current)
Can current flow both ways through a lamp?
Yes, we use AC (alternating current) in our homes, the current changes direction 120 times a second.
Why do transmission lines use alternating current instead of direct current?
Transmission lines use alternating current (AC) instead of direct current (DC) because AC can travel long distances with less energy loss. AC can be easily converted to higher or lower voltages using transformers, which is important for efficient power distribution. Additionally, AC allows for easier control and regulation of power flow in the grid.
Why you use ac current of home instead of dc?
alternating current is generally instantaneous in nature and even in transmission lines it is easy to transmit with less losses when compared to dc as because it possess frequency where as dc do not have
What are the advantages of generating alternating Voltage for transmission?
The main advantage is that it's very easy to step alternating current up or down in voltage by the use of a transformer. High voltage is preferred for long distance transmission because it cuts transmission loss.
What does a transmission system at a radio station use to convert a direct current into a high frequency alternating current?
a high power, often class C amplifier.
Wall outlets use what kind of current?
alternating current
What type of electric current does a power plant generate for use in your home?
generally power plants produce ALTERNATING CURRENT,because after producing the current the are sent to substations where they are stepped up or stepped down.so a transformer is mainly used over there.for a transformer we cant supply direct current.we should supply only alternating current.so they only produce alternating current................... 4RM PRAJITH
How is alernating current that comes out of a wall socket produced?
Alternating current is produced by generators in power plants. These generators use mechanical energy to rotate coils of wire within a magnetic field, which induces an alternating current. The electricity is then transmitted through power lines to homes and businesses.
Why is alternating current more effective at long-distance travel than direct current?
Alternating current is more effective for long-distance travel than direct current because it can be easily converted to higher voltages, which reduces energy loss during transmission over long distances. This is due to the ability of alternating current to use transformers to increase voltage and decrease current, resulting in lower energy losses compared to direct current.
Why is alternating current considered better than direct current?
Alternating current is considered better than direct current because it can be easily transformed to higher or lower voltages, making it more efficient for long-distance power transmission. Additionally, AC allows for the use of transformers, which are essential for distributing electricity to homes and businesses.
Can you use the compass under the power lines?
If the power lines were Direct Current, sometimes used for efficient long distance transmission, then your compass would definitely be affected, and may be quite useless. The high currents in such a long distance DC line will generate a magnetic field. With an Alternating Current power line, the alternating current itself should not cause any problem with the compass, but the steel of the towers themselves may certainly do so.
What type of electrical current is used for three phase 408V?
Three-phase 408V systems typically use alternating current (AC).
What is use of rectifier?
Rectifier is used to convert alternating current to direct current.
