"Electrode" Essays and Research Papers

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Electrode

two half cells connected internally by a salt bridge and externally by wires. A hydrogen half cell is the standard electrode and all comparisons of the other half cells are made against this half cell which has an E( value of zero volts. The E( values of other half cells are obtained by measuring the total emf (electromotive force/Eocell) when attached to a standard hydrogen electrode. All standard reduction potentials are measured with a solution concentration of 1 mol L-1, gas pressures of 101.3...

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Potato as an alternative source of energy

living matter for use in various applications, including the generation of electric energy for self-powered implanted medical electronic devices. In their research, they discovered a new way to construct an efficient battery using zinc and copper electrodes and a slice of your everyday potato. The scientists discovered that the simple action of boiling the potato prior to use in electrolysis, increases electric power up to 10 fold over the untreated potato and enables the battery to work for days and...

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Fruit Battery

objects, for example a galvanized nail and a copper coin, into an ion bridge (for example a lemon, a potato or paper soaked in salt water or acid). The copper coin serves as the positive electrode or cathode and the galvanized nail as the electron-producing negative electrode or anode. These two objects work as electrodes, causing anelectrochemical reaction which generates a small potential difference. ACKNOWLEDGEMENT We would like to thank Wikipedia, Google and our parents for the information and...

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Usefulness of a Battery Charger

Hydride (NiMH) batteries. NiMH batteries are made with nickel hydroxide and hydrogen absorbing alloys that are capable of asborbing and releasing hydrogen at high-density levels. The hyroxide is for the positive electrode and the hydrogren asborbing alloys are for the negative electrode. (Figure 2) below shows the stucture of the Nick-Metal Hydride Batteries. [pic] Figure 2 – Structure of Nickel-Metal Hydride Batteries As seen in Figure 2, the NiMH battery is made up of a positive plate containing...

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Global Welding Consumables Market

Filler metals and flux are welding consumables. Welding electrodes, metal wires, flux cored wires, and shielding gases are other welding consumables.   Covered in this Report This report covers the present scenario and the growth prospects of the Global Welding Consumables market for the period 2014-2018. To calculate the market size, the report considers revenue generated from sales of the welding consumables listed below: Stick electrodes Solid wires Flux cored wires SAW wires and fluxes ...

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Potato Battery

Abstract a. Purpose To lessen the consume of electric charge b. Procedure We insert copper and zinc electrodes in to the potato, close but not touching each other. We use Clip leads to connect our electrodes to the Multimeter to measure voltage between two electrodes or current passing through the multimeter. For this experiment we removed the shell of a broken AA battery for our Zinc electrode. (Make sure to test your multimeter by connecting its Positive and Negative wires to each other that should...

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POTATO INTO BATTERY

BATTERY Abstract a.Purpose To lessen the consume of electric charge b. Procedure We insert copper and zinc electrodes in to the potato, close but not touching each other. We use Clip leads to connect our electrodes to the Multimeter to measure voltage between two electrodes or current passing through the multimeter. For this experiment we used a galvanized nail for our Zinc electrode. c. Result It did go well and the potato did give voltage to the equipment (clock) However, the energy needed...

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types of welding

welding is a process utilizing the concentrated heat of an electric arc to join metal by fusion of the parent metal and the addition of metal to joint usually provided by a consumable electrode. Either direct or alternating current may be used for the arc, depending upon the material to be welded and the electrode used. Electroslag Welding  Electroslag Welding (ESW) deposits the weld metal into the weld cavity between the two plates to be joined. This space is enclosed by water cooled copper...

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Industrial Education

as well as for repairs. The most common process is Gas Metal Arc Welding, or GMAW. In GMAW, an electrode, which is also the filler, is continuously fed through the nozzle of an arc torch. When the welder activates the torch, several operations take place: The electrode begins feeding through the nozzle, a direct current is generated that creates an arc when it comes in contact with the electrode and shielding gases are released around the nozzle to protect the weld from atmospheric gases that...

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Mig Welding

other non-ferrous metals. MIG welding is an automatic or semi-automatic process in which a wire connected to a source of direct current acts as an electrode to join two pieces of metal as it is continuously passed through a welding gun. A flow of an inert gas, originally argon, is also passed through the welding gun at the same time as the wire electrode. This inert gas acts as a shield, keeping airborne contaminants away from the weld zone. Advantages and Disadvantages of MIG Welding The primary...

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