know what I mean? Like in the back your remote control you got 2 x AA batteries and they go side by side, but always the opposite way round + - / - +. Any reason for this? Why can't manufacturers just put them the same way up?
Best answer chosen as always, cheers:p
2007-04-21 06:10:05 · 12 answers · asked by wragster 3 in Science & Mathematics ➔ Engineering
Cant they just change the circuit layout to make it more tidy and have batteries facing same way up? Is this down to cost ?
2007-04-21 06:21:13 · update #1
The short answer is cost... It is cheaper to have a machine shove a short metal strip onto a battery holder then connect a wire diagonally to the bottom of the adjacent cell.
The batteries are being connected in series so as to add up all of the cell voltages. The manufacturer can make the battery holder any way they choose including having one long row if there is enough lenght to allow it...
Consider that cost and ease of manufacture are top priorities... In order to have all of the batteries point in the same direction AND connect in series a wire of long metal strip would need to be connected from the top of one cell to the bottom of the adjacent and so on....
By having you place batteries end over end that same electrical connection is shorter as the top or one battery is now adjacent to the bottom on the next. This electricat connection can now be made with a short straight piece of metal instead of a wire. The connection is now shorter which uses less material, the use of bent metal tabs mean that the connection is easy to automate on a production line.
I mentioned that the metal strip was straight. This is in comparison to one which would be making a diagonal connection. The shorter metal is straight across and is easier to fabricate and uses less material that a longer metal connector making a diagonal connection. This is also easier anc cheaper to make .
Anything that can reduce cost will be done....
2007-04-21 07:40:44 · answer #1 · answered by MarkG 7 · 1⤊ 1⤋
It is easier for the manufacturer (or circuit designer) to line them up that way. The goal is to have them add up their voltages. That means that they need to go each head to toe with the next. The trick is how does the end of the first go over to the correct part of the next. The easiest way is if that needed-end was adjacent to where it has to be connected. Then it is just a short distance over. So yes it is a matter of cost and of space to run a connection from one side to the other - which is easiest if it is a short distance.
2007-04-21 06:20:52 · answer #2 · answered by Rich Z 7 · 0⤊ 0⤋
In almost all cases, we use multiple batteries to give higher voltage than what a single one would. If you put two 1.5V batteries as follows (series connection):
A---plus..minus---B---plus..minus--C
the voltage between A and C will be 3.0 volts.
To to do this, we need to connect the negative of the first battery to the positive of the second. If the batteries are placed side by side, it's much easier to do this if you have them flipped around.
In the rare occasions where you need multiple batteries to provide higher current rather than voltage, you'd have the batteries kept the same way ( in parallel). There's a risk here of one battery discharging into another if they dont have the same voltage, eg. if one is fresh and the other is depleted.
2007-04-21 06:28:04 · answer #3 · answered by astatine 5 · 0⤊ 0⤋
no one way it extremely is going to run clockwise, the different anticlackwise. The cord is often wrapped interior the comparable course because of the fact the magnetic result relies upon on the form of turns and any you wrap "backwards" count variety as -one million so in case you wrap a hundred forwards and ninety 9 backwards you will possibly be able to as nicely do merely one million turn elecrons flow from the battery unfavourable (the place there are plenty) to the battery advantageous because of the fact electrons have an interest in + and repellled via -
2016-10-28 15:23:32 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Just admit it, you keep putting batteries in the wrong way round and are blaming the manufacturers for your incompetence.
2007-04-22 09:17:14 · answer #5 · answered by Anonymous · 1⤊ 0⤋
The pattern of batteries what is shown physically is not true... the real pattern fallows + - /+ - . the AA cell is 1.5V but for operating the device it needs 3V . Thats why they arrange two AA cells in series to sum up their voltages. the pattern which u physically see is + - / - + ; but the real pattern it fallows is + -/ + -.
2007-04-21 06:16:59 · answer #6 · answered by nani 1 · 0⤊ 0⤋
I asked my science teacher the same question she said its because in order for electricity to flow you have to have it go through both positive and negative and the electrons cant flow Negative negative you have to complete the circut or some thing
2007-04-21 06:19:15 · answer #7 · answered by ice cube 2 · 0⤊ 0⤋
Two 1.5V placed in the same direction are in 'Parallel' and will give 1.5V.
When placed in opposite directions, the internal wiring puts them in 'Series' and produce 3.0V.
2007-04-21 07:18:08 · answer #8 · answered by Norrie 7 · 1⤊ 0⤋
I am thirteen so give me a break. Well, two opposites attract so it creates a magnetic field so the electricity can flow through. Thus, giving power and energy to the remote.Well,also don't you remember when you were in elementary school and you did a project on magnetic poles the north pole attracted to south pole and the south pole attracted to north pole! I hope you understood that! Lets hope I'll win.
2007-04-21 06:20:09 · answer #9 · answered by Degrassi Fanatic <3 2 · 0⤊ 3⤋
because they are needed to have the total voltage on them ie 2 batts at 1.5 volts wired in series as they are will give 3 volts whereas if you wire them in parallel they will only give 1.5
2007-04-21 06:13:52 · answer #10 · answered by jonny w 3 · 0⤊ 0⤋