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Showing posts with the label Electronics

Differences between 128 kbps & 320 kbps

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Everyone of us listens music, also we like to hear a high quality music that freshens our mind so that we can complete our work more efficiently with fresh mind. We often see the texts like ‘128 kbps’, ‘190’ kbps’ & ‘320 kbps’ when we visit any ‘mp3’ download site.  What is kbps?  Most of us know the answer to this question i.e. ‘Kilo byte per second’. Kbps is a measure of bandwidth (the amount of data that can flow in a given time) on a data transmission medium .   What is MP3? In order to get the most out of this ubiquitous format, it's important to understand what an MP3 file is, and what it does to your music. MP3 is a digital audio   codec ; that is, it's a method of   co mpressing and   dec ompressing digitized sound. The digital information on a standard audio CD requires about 10 megabytes per minute of music. When a song is ripped from a CD to a computer and converted to an MP3, that same minute of music typically is reduced to a...

NavIC : The Indian version GPS

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Hi Peeps !!!  This is Boopathy .              The Indian Regional Navigation System is officially called as NavIC , which stands for Navigation with Indian Constellation. It is an independent and autonomous regional navigation system which has been designed by Indian Space Research Organization to provide accurate positioning in India. This Regional Geo-positioning system not only covers the country, also it extends 15,000 km around the Indian Boundaries. It aims to provide most accurate and precise location service to the Users.                                                        In 1999, During the Kargil war, the Pakistani troops entered into India, the primary thing sought by Indian Military was the space based Global Positioning System of America. But they denied it. This bitter experie...

Understanding the Charge Capacity of Power Banks and Phone Batteries

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A common misconception The unit milliampere-hour (mAh) is generally used to describe the capacity of a battery. One common misconception is that we can simply divide the capacity of a battery by the capacity of a smartphone/tablet to figure out how many cycles we can use this power bank to charge the smartphone/tablet. However, that is not the correct algorithm. Capacity and energy are different concepts Simply put, Ampere-Hour (mAh) is a measure of electric charge, which represents the capacity of a battery, while Watt Hour (Wh) is a measure of electric energy. Watt-Hour = Ampere-Hour x Voltage A battery of 10400mAh means this battery can provide a total charge of 10400mAh at a specific voltage. As to a Lithium-ion battery, most of its charge is exchanged at around 3.7V. Thus the total energy of a 10400mAh battery is theoretically 10400mAh x 3.7V = 38480mWh, which is approximately 38Wh. Estimate the charge cycles of a power bank Take power ...