Stepha

Blu-ray

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Blu-ray, also known as Blu-ray Disc (BD), is a digital optical disc data storage format. It was designed to supersede the DVD format, and is capable of storing several hours of video in high-definition (HDTV) and ultra high-definition resolution (4K). Blu-ray discs are also used for storing large amounts of data, such as video games. … Read more

Voltage

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Voltage is the difference in electric potential energy between two points in a circuit. Voltage is measured in volts (V). The voltage between two points is equal to the work done per unit charge moving between those points. What is voltage & current? Voltage is the difference in electric potential between two points. The unit … Read more