What will happen to a 9-volt battery if the 2 electrodes are connected by the same piece of metal?
550137
It depends on the conductivity of the metal and how long they're connected to each other.  If you hook them up with one small wire, the wire will get hot and possibly burn after some time.  However, if you do it for a very short time, it won't be a big deal.  It's not good for the battery, sure, but it won't kill you.\n\nHere's a mildly interesting experiment.  Tune your AM/FM radio to any frequency.  Take a 9V battery and a nickel (or quarter) and tap the battery so the nickel touches both leads.  You'll hear your taps on the radio.  Explanation of this can be found in the link below.
944281
+ve charge on one, -ve on the other....static electricity
502133
Short circuiting the battery is not a good idea, but it should not explode or leak "acid" as you suggest.  It is actually incorrect to call the inner contents of a standard 9 volt batter "acid" since there is actually no "acid" inside.  Most standard batteries are called "alkaline".\n\nThe wire placed acrocess the two leads of the battery has very little resistance...almost zero (but not quite zero, just a tab above).\nAccording to Ohm's law,\nV = R*I\nwhere V is the voltage, R is the resistance, and I is the current, you can see that with a very small resistance, a very large current will be drawn.  This large current will heat up the wire. Depending on just how much current and the type and thickness of the wire, the wire may or may not begin to glow or melt.\nSoon after shorting out the batter (within a few minutes) the battery will be dead.  An aweful waste of a battery in my opinion.
364875
Not sure what you mean, are you talking about using 2 different metals and generating electricity from a potato?
2647
The PD will decrease as the current passing through it will drop due to current division
201351
The electrode part doesn't matter. All you need is a strip of copper wire and a strip of zinc. These are easily found at a hardware store.
519039
It really depends.  if you are trying to pass current through the magnet, hooking up the N pole to the + side of the battery, and the S pole to the - side of the battery, then nothing much, other than the magnet may heat up a bit.\n\nIf you are wrapping a copper coil around the magnet and then passing current through the coil, then depending on which way the current is flowing, and how strong a current you are using, you'll either make the magnet stronger, or make the magnet weaker.
329072
try out an electrolysis experiment with the battery u wil get to know abt the charges of the battery the place where the metal move is the negative charged one and where the non metal moves tht is the positive terminal
36655
potential difference\ndue to which the crrent flows  through the ends of the battery due 2 which appliances work on cell or a battery
882064
I don't think it would work. A diode works on principles of quantum physics that require the internal junction to be manufactures according to certain specifications. Putting a copper conductor on between the junctions would destroy all the effects that make it a diode; that is assuming you managed to cut it exactly at the junction. \nBy the way what where you planning to do with such an idea?
130064
CONCLUSION\n\nIn the course of these experiments, you have become familiar with various concepts such as the conductivity of solutions by way of dissolved ions. you have seen redox reactions at work, and that they can be reversed by running current through the circuit. You have learned to measure potentials of reduction of various materials and to predict the voltage generated by a battery when you know it's material components. You can build a working battery from various materials, including lemons, tomatoes, potatoes, almost any fruit or vegetable. Up until now, batteries may have seemed mysterious, but now we are among the few that have a working knowledge of how and why they work. You can amaze your friends by building a battery out of almost anything, but more important than this, now the study and mastery of this subject will be easier and more meaningful\n\nsee the full answer here:
647809
Chemicals... mostly some kinda acid. And some have nickle in it, but I donno if it'll be a solid (metal) or a liquid form. Bust one open and ya'll find out whats really in one.\n\nAnd also that's why they tell ya not to leave patteries in electonics for long periods of time with no use, cause the battery would start to leak the acid and it could fry the system.
976510
What you say is true --IF-- all the components are in series. That will not be true in a circuit with parallel paths, because the current that left the voltage source has to divide at any 'T', some electrons going along one branch and the rest the other branch.
385307
Yes.  It consists in sticking two metallic objects of different kind, usually a galvanized nail and a copper coin, in a potato or lemon. These two objects work as electrodes, producing an electrochemical reaction that generates a small amount of electricity.
820466
The voltage across each resistor will be 12 volts as each is effectively directly connected to the battery.\nIt is the current flow through the resistors which will be different.\nVolts/Ohms =Amps - that is\n12/7 amps or 12/5 amps now get your calculator out!\nRoyS
509223
Something else in the pocket made contact with both terminals, causing the battery to pass current and generating heat.  I did this once by tossing a 9V that I thought was discharged into my pants pocket where I have my office keys.  The keys completed the circuit from the positive to the negative terminals, and I shortly noticed the heat.
203972
I've done some research on this because I seem to remember my teacher talking in school about how they can make batteries with graphite (pencil lead) and vinegar that put out more energy and are more environmentally safe than regular batteries. I'm not sure how this happens but I know that you can take vinegar and pour some into powdered graphite, rub it into a block of wood, and when the vinegar dries the wood will be extra strong because the vinegar disolves the graphite long enough for it to bind to the wood. I can't find any research or projects to back this up but that is what I remember on the subject. Perhaps you could split a pencil and drop the lead in for a few days and see? Maybe use two and a nine volt battery and see what a current does to affect the chemical process...I wish I could help you more.