Full Form of DC and other related information

Full Form of DC

DC, as the name suggests, means direct current, and direct means straight or in the same direction. As we know there are two types of electricity, called alternating current or alternating current, and direct current, also known as direct current. If you are preparing for competitive exams and are looking for expert guidance, you can check out our General Knowledge Ebook Free PDF: https://www.safalta.com/general-awareness-free-e-book

History of Direct Current 

Thomas Alva Edison invented the direct current in the 18th century. You might be surprised to learn that in early 19th-century America, direct current was used for all work. But as soon as DC transmission losses were seen, AC circulation increased. DC power supply There are many DC sources such as batteries, solar cells, rectifiers, etc. Currently, the direct current used in our home appliances is only converted from alternating current. It supplies AC just like your home TV, but your TV uses a transformer to convert it to DC before you use it. It can be easily converted from AC to DC and DC to AC according to customer needs. A rectifier is used to convert AC to DC and an inverter is used to convert DC to AC.

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Application of Direct Current 

The largest application of direct current is in automobiles. Direct current is now essential in this top-class automotive industry. Whether it's a small car, a large car, or an airplane, DC is used everywhere in batteries. Most of the devices are used at home and mostly run on the DC power supply, like TVs, mobile phones, computers, etc. High voltage direct current is used for power transmission over very long distances due to its low power loss. Battery means that direct current is widely used not only for vehicle starting but also for vehicle propulsion. Direct current is also used in telecommunications, where electricity between 48 and 72 volts is used.

 Advantages of Direct Current 

• Direct current is that it is easy to store. Today direct current is ubiquitous, it has changed our lives so much and its quality is easy to store. Could have made it very convenient. Many types of home appliances operate more efficiently when powered by direct current.
• When it comes to power transmission, direct current is very convenient. Very high voltage direct current is used to transmit power over very long distances.
• Direct current is that its maximum voltage level is between 12 and 48 and is not dangerous when using domestic appliances. This means that you will not be electrocuted from this current.
• One of the greatest advantages of direct current is that it can be used anywhere. Direct current is readily available everywhere with the help of batteries and solar cells.

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Disadvantages of Direct Current 

• The main drawback of direct current is transmission loss. If the voltage is low, the transmission loss will be very large. Because if you want to take 12-volt electricity even 20 meters away, the power loss will be very large.
• Another drawback of direct current is that it is easy to convert alternating current to direct current, but somewhat difficult to convert direct current to alternating current.

DC means data compression

This process allows data to be compressed prior to storage or transmission without loss of information. Data compression is a digital signaling process that compresses all data into bits before transmission or storage, thus occupying less space and networks. A quick study tells me how long it would take or how much data would have to be consumed if I had to transfer a 1GB file to a friend. But if you compress the same file and assume the new size is 250MB, you can see how easy the transfer is. 

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Types of data compression –

Two methods are used for data compression:

1. Lossless data compression - With this data compression method, no information is lost when the data is compressed, and not a single bit is lost. This type of data compression is used to transfer software and important files. It doesn't omit a single bit because we know that if a character is omitted by the software, the software won't work.
2. lossy data compression - Some information is lost in this data compression technique, but this data compression technique is performed on files of this type and some beat information is also not important. For example, most of these data compression techniques are used when transmitting images. This is because the image can be opened even if some information is lost from the JPG or PNG file. 

Advantages of Data compression –

• The biggest benefit of data compression is faster file transfers.
• Compressing data reduces the space required to store files.
• The main advantage of data compression is that it saves both time and money.

DC as Deputy Commissioner

In administrative terms as Deputy Commissioner. A district commissioner is the executive director of each district, which is an administrative division of the province. A district manager is also known as a district manager. The Deputy Commissioner has overall responsibility for the implementation of local law and order and governmental plans. The Deputy Secretary also has the right to handle all district financial matters. Land income is also under the Deputy Commissioner's jurisdiction, so he is sometimes called the Collector.