11. Current battery level of a mobile is 5% and the time is 3 P.M. When a charger is connected and mobile is kept idle, battery level increases 1.5% every minute till it reaches 25% and 2% every minute after that. When a game is played, it consumes 1% charge every minute standardly. Sarath charges the mobile and simultaneously plays the game for 50 minutes after which he gives a break of 20 minutes from playing and then continues to play for 15 minutes. At what time, the charge will be 100 %? (Consider that no other external factors affect the battery level)
Answers
Answer:
Batteries, both primary and rechargeable, are important energy storage devices ubiquitous in our daily, modern lives. Whether in our handheld portable electronics, conventional or hybrid/electric cars, or in the electrical “grid,” battery technology will continue to evolve as technology improvements increase storage capacity and lifetime and reduce cost.
Introduction
Batteries are perhaps most synonymous with portable power such as flashlights and personal electronics like cell phones, music players, and laptops to name a few modern examples. We have become trained to monitor the battery “bars” to determine how much more we can talk, e-mail, or surf the “net.” Batteries are far more prevalent, however, and they tend to be underappreciated, such as the ones in our automobiles which perform dutifully until suddenly, usually after years of neglect, they fail to start our car. An electrical power system is the ultimate in just-in-time manufacturing in that...
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Bibliography
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Aditya JP, Ferdowsi M (2008) Comparison of NiMH and Li-Ion batteries in automotive applications. In: Proceedings, IEEE vehicle power and propulsion conference. IEEE, Piscataway