51. --------- extends the range of a moving-iron ac ammeter. C a. A shunt b. A multiplier c. Changing number of turns of operating coil d. A series 52. The most sensitive instrument is D a. Moving-iron b. Dynamometer c. Hot-wire d. Permanent-magnet moving coil BRIDGE MEASUREMENT 53. The bridge uses the -------- measurement and operates on ------------- principle. C a. Direct measurement and null indication b. indirect Direct measurement and null indication c. Comparison measurement and null
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Hendriks Factors that Affect the Strength of an Electromagnet Purpose: To test how two different factors‚ the number of loops and the current intensity‚ affect the strength of the magnetic field of an electromagnet. Materials: Power pack‚ 4 connecting wires‚ switch‚ ammeter‚ paperclips‚ iron nail‚ copper wire. PART A: TESTING THE NUMBER OF LOOPS Procedure: 1. Create an electromagnet made of an iron nail with 5 loops
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Spectrophotometry was used in the lab to determine whether non-magnetized zeolite‚ magnetized zeolite‚ or charcoal was the more effective sequestration agent for Procion Red Dye. A calibration curve was created with the known concentrations and the absorbances of the Procion Red Dye dilutions at λmax. The slope of the calibration curve was used to determine the concentration of the analytes. As a result‚ charcoal was shown to be the more effective sequestration agent. Introduction PAHs‚ polycyclic
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Project Abstract The objective: I continued in this project because I felt that I had more to learn in this subject and that my project had not yet been able to reach to its full potential. In my research‚ I discovered the many laws that when using magnetic acceleration you are altering the forces that are attracting one magnet to an object. The reversal is used in switching plates and gears in most machines because the heavy equipment can only be moved using a powerful enough shift of energy to move
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Find all the manufacturers of magnetic separator and contact them directly on directindustry.magnetic separator is widely used in various industries to extract iron. our range of magnetic separators includes overband magnetic separators‚ a&a magnetics manufactures industrial strength magnets‚ magnetic separators and a complete line of permanent magnetic assemblies. aa also offers magnetic pulleys introduction to magnetic separator: the magnetic drum separator is a kind of most widely and commonly
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generates a magnetic field. For a long time‚ it has been suggested that Earth’s magnetic field would eventually weaken. The field can change over time and may even occasionally flip‚ causing the north to become the south and vice versa. Now‚ new research‚ published on July 28th in Nature‚ states that Earth’s weakening magnetic field is actually a sign that another flip is to be anticipated. It is important to understand Earth’s magnetic field We owe some much of our livelihood to the magnetic field surrounding
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Electricity and magnetism run nearly everything we plug in or turn on. Although it’s something we take for granted‚ it has taken hundreds of years of experimentation and research to reach the point where we flick a switch and the lights go on. Ancient Greeks knew rubbing amber generated static electricity‚ but they didn’t know why. The Greek word for amber is elektron. People knew about electricity for a long time. Ancient Greeks noticed that if they rubbed a piece of amber‚ feathers would
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SOURCE CODE #include #include #include #include #include main() { int score=0; char ch‚temp‚login[100]‚*pass; textcolor(0); textbackground(15); clrscr(); printf("\n\n\n\n\n\n\n\n\n\n\t\tWELCOME TO ’YUUVVA’ONLINE EXAMINATION\n\n\t\tPRESS ENTER TO CONTINUE\n\n\t\t"); temp=getchar(); clrscr(); printf("\n\n\n\n\n\n\n\n\n\t\t\tENTER YOUR LOGIN\n\n\t\t\t"); scanf("%s"‚login); printf("\n\n\n\n\t\t\tENTER PASSWORD\n\n\t\t\t"); pass=getpass(" "); while(strcmp(login‚pass)
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The wattmeter is an electrodynamic instrument for measuring the electric power or the supply rate of electrical energy of any given circuit. The device consists of a pair of fixed coils‚ known as current coils‚ and a movable coil known as the potential coil. The current coils are connected in series with the circuit‚ while the potential coil is connected in parallel. Also‚ on analog wattmeters‚ the potential coil carries a needle that moves over a scale to indicate the measurement. A current flowing
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Chemistry (CHEM310) August 23‚ 2013 Mncedisi Mazibuko 211506686 Experiment 4 Magnetic Measurements: The Magnetic Susceptibility of Two Iron (III) Compounds Abstract The first compound‚ tris(acetylacetonano)lron(lll) (Fe(acac)3)‚ was synthesized at a yield of 71% and the actual mass of 1.27g and the second compound‚ potassium hexacyanoferrate(lll) (K3[Fe(CN)6])‚ was already synthesized in Mudie Laboratory. The magnetic moment of K3[Fe(CN)6] was found to be 1.07 MB and that of Fe(acac)3 was found
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