(b) Ia ‚ Ic ‚ Ib ‚ Id (c) Ic ‚ Ia ‚ Id ‚ Ib (d) Id ‚ Ib ‚ Ic ‚ Ia (e) Ia ‚ Ib ‚ Ic ‚ Id (f) none of these [pic] Figure 17.2 2. Suppose a current-carrying wire has a cross-sectional area that gradually becomes smaller along the wire‚ so that the wire has the shape of a very long cone. How does the drift speed vary along the wire? (a) It slows down as the cross section becomes smaller. (b) It speeds up as the cross section becomes smaller. (c) It doesn’t change. (d) More information is needed
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TRANSFORMER PROJECT You can make a transformer from magnet wire and an iron rod. Remember that magnet wire‚ although it looks bare‚ actually has an enamel coating on the outside that serves as insulation. Enamel is used on magnet wire so that the insulation is very thin and the coil of wire can be compacted into a smaller space‚ thus enhancing the inductive phenomenon. small gauge wire and cause it to melt‚ which is a very good example of how a fuse works‚ but could cause you to
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large galvanized nails * 6 long wire ( 3 pieces) * small digital clock * multi meter Procedure 1. Cut the potato in half and place them next to each other‚ flat face down on a plate 2. Connect one end of the white wire to one of the nails and then place the nail into one half of the potato. 3. Connect the other end of the white wire to the battery holder inside the digital clock. 4. Connect one of the pennies to one end of the black wire then put the penny into the same
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does the length of wire and thickness of wire affect the efficiency of Atwood’s machine?” NAME: MUHAMMAD HARIZ BIN MD YUSUF MAY SESSION 2013 CANDIDATE NUMBER: 002348-086 CENTRE: MARA COLLEGE SEREMBAN‚ JALAN AMINUDDIN BAKI‚ 70100 SEREMBAN‚ NEGERI SEMBILAN‚ MALAYSIA. NUMBER OF WORDS: 3592 NUMBER OF PAGES: 34 Abstract The thickness and the length of wire are the properties which affect the efficiency of pulley system. To find out the best length and thickness of wire and rope that suitable
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which is often a piece of wire‚ must be perpendicular to the magnetic lines of force in order to produce the maximum force on the free electrons. The direction that the induced current flows is determined by the direction of the lines of force and by the direction the wire is moving in the field. In the animation above the ammeter (the instrument used to measure current) indicates when there is current in the conductor. If an AC current is fed through a piece of wire‚ the electromagnetic field
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conductor‚ and the mathematical relationship that exists between these variables. Hypothesis Copper wires would be a better conductor than nichrome wires because it would yield less resistance when they have same cross-sectional area‚ length and temperature. Resistance would be increased when length wires increased. Resistance would be increased when cross-sectional area of wires decreased. Resistivity of wires is a factor of affecting the resistance. Background information Electrical resistance Electrical
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The articles “Energy Shots” by Energyquest.com‚ “Short Circuit” by Explorium.edu‚ and lastly “Conducting Solutions” by Rodney Schreiner all are pieces of writing that present explanations‚ examples‚ and descriptions as to why and how energy is conducted and also a scientific experiment that will show how to conduct energy. First of all‚ “Energy Shots” by energyquest.com explains‚ describes‚ and provideds examples that connect with everybodys daily lifes like what houshold ampliances use and conduct
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How do you think history would have been different if Lincoln had not been assassinated? How might his leadership after the war have differed from that of Andrew Johnson? If Lincoln hadn’t been assassinated‚ Reconstruction probably would have gone a lot differently. Lincoln wanted the South back in the Union quickly. Johnson‚ on the other hand‚ was more interested in letting the South do its own thing‚ even if that meant keeping Black people in a system that wasn’t much better than slavery. Lincoln
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BASIC NEC CODE RULES AND DESIGN PRACTICE Wire Ampacity and Size 1. Maximum loading for any branch circuit is 80% of rating of circuit for ampacity of wire for any load. NEC 220-2‚ use NEC 310-16 for ampacity. This applies to not more than 3 phase conductors in 1 conduit. Warning Voltage Drop NEC 310-16 wire ampacity tables do not take into account voltage drop‚ only thermal limit. Overhead triplex‚ use 310-16 for wire ampacity. Rule of Thumb If circuit is loaded up to
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of wire used on the electromagnet then the greater number of paper clips picked up. Also The greater the current the greater the number of paper clips picked up. There will also be a limit to the amount of magnetism created and how many paper clips can be picked up‚ known as saturation. For the number of coils I believe that the more coils the more paper clips picked up. This is because the magnetism cuts through more coils‚ which induces a bigger current. For the length of wire I believe
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