http://blog.laptopbatterylife.com/2012/10/21/ac-and-dc-power-voltage-lesson-2-of-2/ Durable Laptop Batteries Tue, 30 Apr 2013 01:48:43 +0000 hourly 1 http://wordpress.org/?v=3.5.1 http://blog.laptopbatterylife.com/2012/10/21/ac-and-dc-power-voltage-lesson-2-of-2/#comment-22534 dcaulf Sun, 21 Oct 2012 08:59:28 +0000 http://blog.laptopbatterylife.com/2012/10/21/ac-and-dc-power-voltage-lesson-2-of-2/#comment-22534 (part 1) A battery can not just give elections to something else without getting an electron right back, otherwise it would start to build up charge. That is why you couldn’t light a light bulb by connecting a wire from the negative terminal of one battery to the positive terminal of a different battery. All a single battery can? do is push an election from its negative terminal to its positive terminal, and the amount of push is the 1.5V.

]]> http://blog.laptopbatterylife.com/2012/10/21/ac-and-dc-power-voltage-lesson-2-of-2/#comment-22533 dcaulf Sun, 21 Oct 2012 08:50:24 +0000 http://blog.laptopbatterylife.com/2012/10/21/ac-and-dc-power-voltage-lesson-2-of-2/#comment-22533 (part 2) When you stack two batteries in series, the (+) side of the bottom? battery will immediately go to the same charge level (electric potential) as the (-) side of the top battery (any two touching conductors do this). In this configuration, an electron that leaves one battery ends up going into the other battery (+) terminal and they trade electrons. Because each battery has to maintain a 1.5V push, they create a combined push that acts like one big 3V battery. Hope that helps.

]]> http://blog.laptopbatterylife.com/2012/10/21/ac-and-dc-power-voltage-lesson-2-of-2/#comment-22532 JTGkeeno Sun, 21 Oct 2012 08:31:42 +0000 http://blog.laptopbatterylife.com/2012/10/21/ac-and-dc-power-voltage-lesson-2-of-2/#comment-22532 Great video i have 2 questions though. (Australian Voltage is 240) If an AC circuit alternates between +240 and -240 how come when tested with a multimetre it will only show a steady reading of 240? Also why does Neutral show zero? voltage if there is 240v at the power terminal and it is a closed circuit?

]]> http://blog.laptopbatterylife.com/2012/10/21/ac-and-dc-power-voltage-lesson-2-of-2/#comment-22531 dcaulf Sun, 21 Oct 2012 07:40:07 +0000 http://blog.laptopbatterylife.com/2012/10/21/ac-and-dc-power-voltage-lesson-2-of-2/#comment-22531 A voltmeter needs to be set? to either DC or AC measurements. I believe the AC voltage reading is actually a root-mean-square (RMS) style of averaging that effectively flips the negative part of the waveform to a positive (from the “square” part). The averaging comes out to about 115V so it is fair to say I simplified the situation. In the US we often use 230V (RMS) AC circuits for large appliances like ovens and electric dryers. This may be similar to what you have in Australia?

]]> http://blog.laptopbatterylife.com/2012/10/21/ac-and-dc-power-voltage-lesson-2-of-2/#comment-22530 dcaulf Sun, 21 Oct 2012 07:39:39 +0000 http://blog.laptopbatterylife.com/2012/10/21/ac-and-dc-power-voltage-lesson-2-of-2/#comment-22530 Also @JTGkeeno, the neutral and ground are both essentially a hunk of grounded wire. The circuit is only closed when you have something plugged in connecting the? live to the neutral. The device that is plugged in will always have some resistance to keep electron flow under control. Without resistance the circuit would “short” and rapidly (too rapidly to be safe) try to bring the live and the neutral to the same electric potential. Hope that helps, I’m not sure I answered your question!

]]> http://blog.laptopbatterylife.com/2012/10/21/ac-and-dc-power-voltage-lesson-2-of-2/#comment-22529 TheCharlyOrton Sun, 21 Oct 2012 07:10:56 +0000 http://blog.laptopbatterylife.com/2012/10/21/ac-and-dc-power-voltage-lesson-2-of-2/#comment-22529 thank you so much.?

]]> http://blog.laptopbatterylife.com/2012/10/21/ac-and-dc-power-voltage-lesson-2-of-2/#comment-22528 truetohisownsoul Sun, 21 Oct 2012 06:33:42 +0000 http://blog.laptopbatterylife.com/2012/10/21/ac-and-dc-power-voltage-lesson-2-of-2/#comment-22528 your vids helped a great deal, truly appreciate it?

]]> http://blog.laptopbatterylife.com/2012/10/21/ac-and-dc-power-voltage-lesson-2-of-2/#comment-22527 MrSebastian12358 Sun, 21 Oct 2012 05:50:39 +0000 http://blog.laptopbatterylife.com/2012/10/21/ac-and-dc-power-voltage-lesson-2-of-2/#comment-22527 Great lessons sir…?

]]> http://blog.laptopbatterylife.com/2012/10/21/ac-and-dc-power-voltage-lesson-2-of-2/#comment-22526 sneaeky Sun, 21 Oct 2012 05:08:01 +0000 http://blog.laptopbatterylife.com/2012/10/21/ac-and-dc-power-voltage-lesson-2-of-2/#comment-22526 So, if i wanted to impress my friends, ? I could stick something metal in the bottom or left hole of the outlet?

]]> http://blog.laptopbatterylife.com/2012/10/21/ac-and-dc-power-voltage-lesson-2-of-2/#comment-22525 dcaulf Sun, 21 Oct 2012 04:40:34 +0000 http://blog.laptopbatterylife.com/2012/10/21/ac-and-dc-power-voltage-lesson-2-of-2/#comment-22525 HAH! In theory that may be true? as long as you trust your electrician. In practice, you may be better off learning to juggle.

]]>