Kirchoff - Study guides, Revision notes & Summaries

oxidation - ANSWER loss of electrons, positive charge atoms (anode) reduction - ANSWER gain of electrons, negative charged atoms (cathode) forms of corrosion - ANSWER uniform, crevice, galvanic (dissimilar metals) if two metals have to be couple then best to couple metals close together in the galvanic series, pitting, intergranular, selective leaching (dezincification, graphitization), velocity phenomena, environmental cracking (corrosion fatigue, hydrogen embrittlement, SCC (Carbonates/b...

oxidation - ANSWER loss of electrons, positive charge atoms (anode) reduction - ANSWER gain of electrons, negative charged atoms (cathode) forms of corrosion - ANSWER uniform, crevice, galvanic (dissimilar metals) if two metals have to be couple then best to couple metals close together in the galvanic series, pitting, intergranular, selective leaching (dezincification, graphitization), velocity phenomena, environmental cracking (corrosion fatigue, hydrogen embrittlement, SCC (Carbonates/b...

Ohm's Law relates the following... - ANSWER-volts, amps, resistance Resistance to current flow is lowest for a) low conductivity media b) small cross sectional area media c) short length of conductor d) high resistivity media - ANSWER-c In a series circuit a) voltage drops are always equal b) total resistance equals the sum of individual resistances c) current varies through resistors d) total current is equal to the sum of the current through each resistor - ANSWER-b Accor...

An overview into potential dividers and Kirchhoff's current and voltage laws.

Torches are designed to avoid mixing oxygen and acetylene by using __________. - ANSWER Reverse-flow check valves at torch inlets or regulator outlets To prevent leakage around the valve during use, __________ - ANSWER An oxygen cylinder valve should be opened all the way An explosion can occur if __________ comes in contact with oil. - ANSWER High pressure oxygen A green welding hose normally indicates that this hose carries __________. - ANSWER Oxygen A __________ is a non-destruct...

Torches are designed to avoid mixing oxygen and acetylene by using __________. - ANSWER Reverse-flow check valves at torch inlets or regulator outlets To prevent leakage around the valve during use, __________ - ANSWER An oxygen cylinder valve should be opened all the way An explosion can occur if __________ comes in contact with oil. - ANSWER High pressure oxygen A green welding hose normally indicates that this hose carries __________. - ANSWER Oxygen A __________ is a non-destruct...

Concept about electric current potential emf . Drift velocity is explained in a different way. It will clear concept about current.

The sections on waves, optics, acoustics, resonators, and statics benefited particularly from interactions with Professors Kong and Haus, Ippen and Bers, Stevens and Peake, Smullin, and Haus and Zahn, respectively. Scott Bressler and Laura von Bosau have been particularly helpful in reducing the graphics and text to the printed page. This is a preliminary version of the final text and therefore any comments on content or potential additions or corrections would be appreciated.

Metals that contain iron, such as steel, have _____________ properties. - ANSWER magnetic ________________ metal is a metal similar in composition to the metal being joined. It strengthens the weld by filling the gap created between the two pieces of metal during welding. - ANSWER Filler The gas metal arc welding (GMAW) process uses ______________ to melt metal wire and fuse it with the base metal being welded. - ANSWER electricity Metals that contain iron, such as mild steel, are calle...

Introduction to Kirchoff's Laws Current Law and Voltage Law