circuit is equal to the time rate of change of the magnetic flux through the circuit. Under Faraday’s Law‚ electric current is induced only if either the magnetic field is changing or the conductor is moving. Generators‚ for example‚ spin a coil of wire around a magnet to produce a steady current” [3]) did electricity become viable for use in technology. Since this electricity and the inventions that came with it has exploded as the worlds knowledge of electromagnitism has broadends and advances.
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Welding Operations : There are two types of welding being done: * METAL INERT GAS WELDING ( MIG ): It is a welding process in which an electric arc is formed between a consumable electrode wire electrode and a work piece metal‚ which heat the work piece metal‚ causing them to melt‚and join. Along with a wire electrode a shielding gas is fed through the welding gun‚which shields the process from contaminants in the air. The process can be semi –automatic or automatic. A constant voltage‚ direct
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an electrically-heated wire coil; another used a small pilot flame‚ fueled with pressurized gas from the system. The flamethrower is a potent weapon with great psychological impact upon unprepared soldiers‚ inflicting a particularly horrific death. This has led to some calls for the weapon to be banned. It is primarily used against battlefield fortifications‚ bunkers‚ and other protected emplacements. A flamethrower projects a stream of flammable liquid‚ rather than flame‚ which allows bouncing
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System The following are recognized as standard systems of distribution. Distribution systems differing from these will be specially considered. • Two-wire direct current • Three-wire direct current • Two-wire single-phase alternating current • Three-wire three-phase alternating current • Four-wire three-phase alternating current * Three-wire single-phase AC may be used in conjunction with this system for lighting. Voltage and Frequency Variations (2008) Electrical appliances supplied
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1.) How does the use of fluted filter paper hasten filtration? Why is it advisable to place a small piece of wire between the funnel and the mouth of the flask during hot filtration? The way the fluted filter paper is folded hastens filtration because it increases the surface area of the filter paper‚ giving the solution more area to go through. A piece of wire is placed to avoid build-up of pressure‚ and easily pour the solution without spilling. 2.) Enumerate 2 techniques that can help
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thin and easily bent or twisted. It had a metallic surface and was brittle. It was silver in color. A flame from a Bunsen burner was held to the Mg‚ and it ignited‚ giving off a brilliant white light. Looking directly into the light resulted in temporary blindness‚ which would explain the warning on the procedures that strongly suggested not looking directly into the light. After the flame had extinguished itself due to lack of fuel‚ the Mg had turned from a metallic strip to an off-white powder
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Symbolism helped the reader understand the captivity of the Jews in the concentration camps.”Father‚ I said “If that is true then I don’t want to wait. I’ll run into the electrified barbed wire. That would be easier than a slow death in the flames.”(33). Wiesel uses his symbolism when he said “the electrified barbed wire.” It’s being used to show the reader that this is how the atmosphere was during the holocaust. Elie Wiesel‚ in his autobiography Night‚ his use of Simile helps the reader to understand
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SEMI – MICRO QUALITATIVE ANALYSIS OF SIMPLE INORGANIC SALT _______________________________________________________________ CATIONS: Pb2+ ‚Hg2+ ‚Cu2+ ‚Cd2+ ‚ Ag+ ‚ Fe2+ ‚ Fe3+ ‚ Al3+ ‚ Zn2+ ‚ Mn2+ ‚ Co2+ ‚ Sr2+ ‚ Ba2+ ‚ Mg2+ ‚ NH4+ ANIONS: CO32- ‚ S2- ‚ SO32- ‚ SO42- ‚ NO2- ‚ NO3- ‚ Cl- ‚ Br2- ‚ PO43- ‚ CH3COO- _______________________________________________________________ PRELIMINARY TESTS 1. Note the state (amorphous or crystalline) and colour of salt. 2. Test the solubility of the salt in
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test tubing‚ and funnel to capture the NH4Cl fumes during the sublimation process. Place the unknown substance in the evaporating dish‚ and then weigh it. Place the evaporating dish on wire gauze on the iron ring stand. Light the Bunsen burner and adapt it until there is a darker inner flame inside the lighter outer flame. Place the Bunsen burner underneath the improvised fume hood. Heat the evaporating dish for 15 minutes (or until the white fumes disappear). Carefully shake the evaporating dish during
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separately by holding a nichrome wire over a Bunsen burner‚ we found that each salt emitted a different color of light. For example‚ Potassium Chloride burnt a bright pink flame when burned‚ while Calcium burnt orange. No color was truly identical. What was the cause of this phenomenon? To answer this question‚ we need to dive deep into the heart chemistry‚ right down to individual atoms and electrons. According to chemicalconnection.org.uk‚ “The heat of the flame causes electrons in the metal
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