clintbryson
New Member
What type of battery would I need to power a standard 40 or 60 watt light bulb?
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When you say "standard", do you mean the kind that you put in lamp sockets in your house? If so, you need around 110 volts, AC or DC to get them to standard brightness. Eight to ten car batteries in series will do the trick. An inverter might be easier.clintbryson said:What type of battery would I need to power a standard 40 or 60 watt light bulb?
No offense to you older guys who still use E for Voltage but according to my instructor who has many years of Electronics background Voltage is symbolized now by V which makes it a lot less confusing for new people.
Johnson777717 said:Well either way, as long as you know what is happening. I'm only 24 and I've been taught the "E" way. I suppose different areas of the world teach things a little differently.
Hey, my old resistors resist just as well as your new resistors.Nigel Goodwin said:Johnson777717 said:Well either way, as long as you know what is happening. I'm only 24 and I've been taught the "E" way. I suppose different areas of the world teach things a little differently.
I'm 48 and was taught V, is E an American thing?, they still use the old symbol for resistors as well :lol:
Ron H said:Hey, my old resistors resist just as well as your new resistors.
Nigel Goodwin said:I'm 48 and was taught V, is E an American thing?, they still use the old symbol for resistors as well :lol:
chaotic-mind said:Nigel Goodwin said:I'm 48 and was taught V, is E an American thing?, they still use the old symbol for resistors as well :lol:
What symbol would that be?
magickaldan said:Actually all my books have the zigzag for the resistors and I prefer that over the box and I'm just 15. These books were published last year by radioshack.
Having said that, I'll be asking for 'a pound of bacon' in the supermarket later on today
I'm taking college classes now, and as far as E and V is concerned we use both in physics. We use V as the voltage drop across a particular device and E for the electromotive force of a battery. That's were the E comes from. So when we talk about the voltage of a capicator or the voltage drop across a resistor it's given as V, and when a battery is given it is usually stated to have an electromotive force of say 12Volts.
Johnson777717 said:Do they really sell bacon by the pound over in the UK???
Not 'really' - but they give the price for both kilograms and pounds, and if you ask for a 'pound of bacon' (as I did earlier on today) they sell you 0.45Kg instead :lol:
I don't see how the metric changeover can be complete until the pre-metric generations have died out. The weather forecasts here give temperatures in C and F - I don't have a clue how cold or warm temperatures in C are!. Same with measurements, I'm happy to work in either (or both), but if you asked me how long I wanted something I'd say "six inches", never "15 cm's".
I grew up using Pounds, Shillings and Pence - and I still tend to thing in that way, I still commonly call a 50p piece "ten bob".
jimmything197 said:Also, I vote that resistors remain zig-zags forever, because once you start making them rectangles, schematics start looking like flow charts and my fun is lost. Just my personal opinions....
Actually Johnson I'm in the U.S. Just like you and I've heard both v and e but like the other fellow in college said E is Electromotive force which is actually EMF but still I think its easier with v for voltage and e for electromotive so theres no mix up. and one more thing Johnson Ohms law is V=I*R not W=I*V because W=I*V is watts law not ohms law sorry man but I ahd to point it ou for the persons help!