how does an electric eel generate electricity compared to a battery?
405791
The electric eel isn't an eel at all but one of a family of electric fish.  The electric eel is different from other electric fish in its ability to generate a stunning or even a killing electrical discharge.  The electric eel can produce up to 600V in a single dischange -- this is 5 times the shock you would get from sticking your finger into an electrical socket.  David Attenborough, in his TV series Life On Earth, demonstrated how the electrical current produced by an electric eel could be used to turn one of more light bulbs!  The electric organ, which consists of a series of modified tail muscles, is similar to a row of batteries connected in a series.   It is subdivided into three sections:  two small and one large.  One small battery is used for navigational signals.  The large battery and the other small one is used to generate the stunning discharge.  After delivering a strong shock, the electric eel must then allow the electric organ to recharge.   Batteries have to be recharged using an external source of energy; in the electric eel the energy to recharge the electric organ comes from the fish's metabolism.  \n\nA discharge from an electric eel can kill the small fish that are its primary food, but electric eels can also shock potential predators.  A touch from the electric eel's tail can effectively disable a human or a large animal with a stunning shock, although a single discharge is usually not enough to kill.   However repeated shocks could kill, and falling over in the water after a disabling discharge could result in drowning.  An electric eel would NOT make a good pet!  \n\nElectric eels are air-breathing fish that use vascular folds in the lining of the mouth for absorbing oxygen.  Air is taken in through the mouth and out through the gill slits.  If you watch the fish in the Record Aquarium for a few minutes, you will see it rise to the surface to breath.  Nearly 80% of the oxygen used by the fish is taken in this way. \n\n...\nFor example, electric eels can store charge via concentration gradients of biochemically common alkali metal ions across the membranes of electroplaque cells. In contrast, most batteries used for storing charge require biochemically foreign, toxic elements, such as lead and cadmium. Because of this strategic difference, manmade technologies often distribute throughout the environment persistent pollutants that are toxic because they contain elements that are used sparingly or not at all in biochemistry.
208780
A battery is a storage device. If it is "under constant charge" it is unnecessary, since the electricity charging it can be used to power whatever you are using the battery for. If you mean there is constant power to the battery but not enough to perform the work, then you need to give more information, basically coming down to how much power is coming from the battery to make up the difference, and how big a battery and is it at full charge at the beginning.\n\n"Horse" - if you mean horsepower, is the work done by the motor. It has little to do with how much battery power you need to run the motor, which depends more on the size of the motor. The work done depends on the torque produced when power is applied to the motor.\n\nSee http://en.wikipedia.org/wiki/Maximum_power_theorem
598213
On a battery, you have two terminals- a positive and a negative.  As a result, the net charge is 0.  Also, a battery is the source of 'power' in an electrical circuit, it is direct current (DC) instead of alternate(ing) current (AC).  The battery produces a certain number of Volts and from that, you can find the current at different points in the circuit, as well as the number of amps.  (I hope this is what you are talking about)
240140
The tesla coil generates high voltage electricity at high frequencies.\n\nLots more details here...\nhttp://en.wikipedia.org/wiki/Tesla_coil
1054451
Moving water -- generally provided by a river -- is used to turn a turbine.  The turbine is wrapped in conductive cable, and the housing is lined with magnets.  Thanks to the Oersted Effect (or maybe the Faraday Effect; I get them mixed up), moving a conductor through a magnetic field generates an electric current.  The stronger the magnets and the more conductor involved, the more current you get -- which is why hydroelectric turbines are so freakin' big.
231917
How will he SHOW that an electric current has been produced? It won't be sparking or anything like that.\n\nHere's a very crude, but effective way to prove an electric current has been produced. Buy a D-sized battery and some non-insulated wire. Using thick gloves, place one end of the wire on the + side of the battery and the other end of the wire on the - side. Hold them in place. Almost immediately, the wire will become very hot. The heat produced is due to friction. The electrons (electric current) traveling from one end of the battery to the other rub against the particles that make up the wire. The rubbing produces heat, like when you rub your hands together really fast.\n\nAs an added bonus, wrap that same wire around a galvanized nail about 8 times, (be sure to leave both wire ends free)then repeat the steps above. The nail becomes magnetized and will pick up paper clips. The more coils you wrap around the nail, the more magnetized it will be. This is called an electromagnet because a magnet was produced by an electric current.
189365
u know water flows from higher altitudes to lower.ie, for the flow of fluids a hight difference is needed ,,interms of energy a difference in potential energy is needed.like that for the flow of current a difference in electric energy is needed .this energy difference is called potential difference.\n\n              if we connect an emf source to a resister,the energy difference form btn the terminals of resister
71697
Electricity generated by relative motion of a magnetic field and an electric charge.\nMaxwell's 2nd equation states that a magnetic field that varies at a given point induces an electric field that exerts a force on an electric charge.  This force moves the charge.  The free electrons in a conductor are such a charge, and are moved by the relative motion of the conductor and the magnetic field.  \nGenerators and transformers are common applications of this effect.  In a generator the magnetic field may be intrinsically constant (created by DC or a permanent magnet), or varying (created by AC).  The conductor is a coil or set of coils.  No mechanical relative motion of the field and conductor is needed if the field is intrinsically varying.  If such relative motion is needed, the coil can be rotated with the magnetic field held stationary or vice versa, so relative motion of the conductor and the magnetic field occur.  \nIn a transformer the current is always AC and no mechanical motion is needed.  The magnetic field is produced by an input coil (an electromagnet), which shares its core with the output coil for good magnetic field coupling.
1029853
When the bird perches on a live wire, her body becomes charged--for the moment, it's at the same voltage as the wire. But no current flows into her body. A body is a poor conductor compared to copper wire, so there's no reason for electrons to take a detour through the bird. More importantly, electrons current flow from a region of high voltage to one of low voltage. The drifting current, in effect, ignores the bird. \n\nBut if a bird (or a power line worker) accidentally touches an electrical "ground" while in contact with the high-voltage wire, she completes an electrical circuit. A ground is a region of approximately zero voltage. The earth, and anything touching it that can conduct current, is the ground.
330278
Electricity is a form of energy that can be transmitted efficiently through copper wires because it is a good conductor. To transmit the same electricity through air, you will need very high voltage as air has a high resistance. Additionally, the efficiency will also be reduced as there may be arcing. High voltage is also dangerous.\n\nHowever, when we send a Radio Wave, it is also a form of energy. In the early days of Radio, there is a circuit that is popular with Radio enthusiasts called the Crystal Radio. The Crystal Radio does not need a battery to power it. It uses the Radio Signals itself. With some innovative design, one can tap into the Radio waves and convert that into electrical energy. This is a form of wireless electricity. However, the power level is very low.\n\nSo potentially, it is possible but there are probably many challenges ahead. Today, it is still not viable but we never can tell, technology has always done the impossible.\n\nFor very short range, electricity may be wirelessly  transmitted via induction (magnetic fields). Some pace makers are recharged via induction.
1057959
You are confused.  Electrons don't conduct electricity.  They, collectively, make electricity.  They do work by going from high potential energy to low potential energy.  The potential energy is usually caused by concentration of charge, because like charges repel each other.  The movement of electrons is what we call electricity.  Charge is a measure of the difference between number of protons and number of electrons, if you multiply the difference by the charge for one electron you get the charge.\nA coulomb is a unit designed to be more usefull than the charge on an electron because it is large enough to work easily with..
594209
It is where you use the energy of tidal flows to turn a turbine or such to produce electricity.\nIf you think about a dam using the energy of the water to turn turbines, much the same method is used to harness the wave energy.  However, it is not as efficient, and it is much harder to harness.  \nThere are other methods currently on trial, the web link below will take you to a site with the three main areas.  \nThe second one takes you to an educational site.\nGood luck
430405
A better method is an electric fencer, which can be battery operated. If it can keep cows from leaving their coral it should provide enough juice to electrify catfish.\n\nCheck out the following link:
584857
A generator produces a current by moving a wire through a magnetic field.  If you had an infinitely large magnetic field, you could move in one direction forever and produce a dc current.  However, it isn't practical to do that.\n\nInstead, you put a ball of wire inside a much smaller magnetic field and you spin it.  The ends of the wire have to be touching something to complete the circuit so electrons can flow.  At one part of the circle, the wire is moving left to right across the magnetic field and causes electrons to flow in one direction in the wire, in another part of the circle, the wire is moving from right to left and the electrons flow in the opposite direction.  This is what causes the current to alternate.\n\nSo, when converting motive energy into electricity, ac current is the easiest to produce.  This is like what is produced by a car's alternator or a hydro-electric plant.
401655
Short answer:  Electricity and magnetism are two sides of the same coin; each can cause the other.  For instance, moving a wire through a magnetic field can create a current, while current flowing through a wire also creates a magnetic field.  Thus, one can generate electricty by using some kinetic energy source--water, wind, what have you--move powerful magnets through wire coils.  There are other ways, of course.
231801
The first 5 leters of the word electricity come from the word 'electron'. In the study of electricity (or electical engineering if you like), 2 quantities help us understand how elecricity works, they are;\n1.Current which is defined as the rate of flow of charge,i.e. how fast charges movein a medium, you see electrons are (negatively) charged particles, when a couple of electons move(say in a wire) current is said to flow, based on how well electrons will flow in a material all materials are classified under cconductors(like metals) and insulators(like wood).Conductors have higer 'conductivities'than wood. this is important to note because based on the molecular structures of materials electrons dont always flow as freely as they would like, the atoms in the material(based on the ambient temperature) offer opposition to the flow of electrons, this is called resistance.For short you could say current is the flow of electrons.\n2.Voltage, which is what causes the electons to flow, it works by creating differnt levels of voltage at the end of the wire much like having a pipe at different levels of height so water can flow. if the pipe were flat on the floor the water will remain where it is.\n\nThis flow of electons is useful for example in the simple light bulb which works by a material givivg of light and heat as its form of reistance (mentioned earlier)in other words only when current flows in this material, will light come on.\n\nElecricity is the flow of current(or electrons form the explanation above)\n\nEnginners and scientists always find ways of getting the right amount of voltage and current based on their understanding of the behavior of materials to acheive all the electrical feats you've seen.\n\nReminds me of a question i was asked once 'if electricity is just a flow of electrons meaning all the electrons coming into my house leaves eventually, then why do i pay bills'. I am sure you can answer now that the electrons may be free but the voltage for driving it is not free. This is what generating stations generate.
951632
Imagine that a battery is the equivalent of putting up a rock up one step in a stair, as the potential increases.  With batteries in series, you go one step, then another, then a 3rd, so in the end you have your rock 3 steps higher.\nNow with the batteries in parallel, you take one rock and take it one step up, then you take ANOTHER rock and put it one step up, and a 3rd; so you have 3 rock one step up, instead of one rock 3 steps up.\nThe amount of work is the same in both cases, but something was traded: in the case of electricity, voltage is traded for potential intensity (amperage).