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halfANDhalf
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i am currently going over ac and dc currents in school but i want to know more but my teacher isn't going very deep into this subject. Can you help me out please?
As Turbo indicated - rectification. Please show some effort by oneself.halfANDhalf said:well does anyone know how DC can be generated from AC?
Oops! I didn't review before posting. Common SS rectification circuits are made up of diodes, not capacitors. Capacitors are used to take out the ripples and smooth the DC after it is produced. This was common in guitar amplifiers from the '60's on. Until the '60's most amps used rectifier tubes but as the power-handling and reliability of diodes improved, diodes often got the nod. Since diodes *can* fail under reverse bias, they were often used in series. IIR, the Fender Twin Reverb design employed series chains of 3 diodes on each leg of the rectifier circuit.turbo-1 said:Listen! You can take alternating current and run it through a tube rectifier or through a capacitor-based rectifier and make DC out of it. It's also possible to produce DC that has AC-like ripples.
Study! Please take the time to research electricity and learn - then come back with questions. If you are serious about learning, I will help you, and others will, too. If you keep posing general questions about very basic concepts, people will ignore your posts and you will not benefit.
We will ALWAYS help if you come here having covered the basics on your own and want help with the details. Everybody here who helps with homework and studies is volunteering their time for free and we all have jobs, school, research, families, etc that take up much of our time, so we appreciate it when students with questions will do as much independent work as possible and then pose questions when they hit a snag. If it were not done this way, we couldn't help anywhere near as many people.halfANDhalf said:i already found that stuff out now besides i already looked it up bnut thanks any ways you guys really help out on my exam
Alternating current (AC) is a type of electrical current that changes direction periodically, while direct current (DC) flows in only one direction. AC is commonly used in household and industrial electrical systems, while DC is used in smaller electronic devices, such as batteries.
AC voltage constantly changes from positive to negative, while DC voltage remains at a constant level. AC voltage is able to be easily transformed to different levels using transformers, while DC voltage cannot be transformed in the same way.
In terms of power transmission, AC is more efficient due to the ability to use transformers to increase or decrease voltage. However, in terms of energy consumption and cost, DC is more efficient as it does not require as many conversions and can be used directly by electronic devices.
One advantage of AC is its ability to be easily transformed to different voltage levels, making it more suitable for long-distance power transmission. It also allows for the use of smaller and more efficient wires. Additionally, AC generators are simpler and more reliable than DC generators.
Both AC and DC can be dangerous if not handled properly, but AC is considered to be more dangerous due to its ability to deliver a higher voltage and the fact that it can cause muscle contractions. However, proper safety precautions should be taken when working with either type of current.