output characteristics of an NPN transistor in common base configuration and calculate various parameters. Components and Equipments Required: Transistor‚ voltmeters‚ ammeters‚ rheostats‚ dc sources‚ breadboard and CRO. Theory: In CB configuration‚ the base of a transistor is common to input and output circuits. Input voltage is applied between emitter and base and output is taken across collector and base. CB configuration is also called grounded base configuration. In this setup‚ an increase in
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PHYSICS > MOTORS AND GENERATORS| AC & DC Gather secondary information to discuss the advantages and disadvantages of AC and DC generators and relate these to their use. AC generators Advantages The slip rings of an AC generator have a continuous surface that allows the brushes to remain in contact with the ring’s surface. Thus the brushes in an AC generator do not wear out as fast as in a DC generator as they do not create an electric short circuit every half-turn. Therefore they required
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iosrjournals.org Speed Control of Dc Motor Using Fuzzy Logic Technique 1 1‚ 2‚ 3 J. N. Rai‚ 2Mayank Singhal‚ 3MayankNandwani Department of Electrical Engineering‚ Delhi Technological University Abstract:This project uses FUZZY LOGIC TECHNIQUE in estimating speed and controlling it for DC motor. The rotor speed of the dc motor can be made to follow an arbitrarily selected trajectory. The purpose is to achieve accurate trajectory control of the speed of DC Motor‚ especially when the motor
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Batman gets a lot of love from DC Comics‚ and it’s nice that Harley Quinn is shoving her way in and owning this month’s celebration. Batman is one of the most recognized superheroes ever‚ and his little corner of the DC Comics universe has spawned a lot of movies‚ a current TV series in the form of Gotham‚ and it certainly didn’t hurt Suicide Squad‚ either. But from the world of Batman came Harley Quinn‚ and in her 25 years‚ she’s built up quite the following — enough for DC to declare that she‚ not the
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AC/DC is a 5 piece hard rock band from Australia formed in 1973 by the two brothers Angus and Malcolm Young. Their style commonly referred to blues rock and rock n roll with a quite simple rhythmic structure. The band had several line-up changes‚ Mark Evans was replaced by Cliff Williams in 1977 and after the tragic death of the lead singer and co-songwriter Bon Scott in 1980‚ ex-Geordie singer Brian Johnson was auditioned and selected to replace Scott. Later that year‚ the band released the new
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Warner Home Video and DC Comics unleashes the fury in their latest direct-to-DVD offering “Justice League vs. Teen Titans.” The all-new DC Universe Original Movie is brought to us by Director Sam Liu (“Batman: Year One‚” “All-Star Superman”) from a script by Bryan Q. Miller (“The Flash‚” “Arrow”) and Alan Burnett (“Batman: The Animated Series‚” “Batman Beyond”). It is based on an original idea instead of a comic book arc like most of the past animated films. Frustrated and disillusioned about his
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------------------------------------------------- BSc. in Electrical & Computer Engineering ECNG 2005 Lab and Project Design III Individual Design Project PI Control of a DC Motor Keshan Kevin Babooram 810001070 Group F Course Lecturer: Marcel Byron Date Submitted: April 20th‚ 201 Abstract This project is based on the PI control of a DC motor with consideration given to a cooling fan application. This design also utilizes microprocessor as the controller. The designed system will have a means of
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Subqueries and derived tables can add great versatility to SQL statements‚ cut down complexity‚ but can occasionally be a curse when their effect on performance is poorly understood. Surely everyone understands the various types of subqueries and how they are used? If you felt a twinge of doubt‚ here is Rob Sheldon’s easy guide to the subject. ew elements within a Transact-SQL statement are as versatile as the subquery. A subquery—also referred to as an inner query or inner select—is a SELECT
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DC Touring Spots Rock Creek Nature Park Planetarium shows‚ nature walks and more. Daily‚ 9 a.m.-5 p.m. Rock Creek Park‚ Glover Road‚ NW. 202/426-6829 Bureau of Engraving and Printing See how $$$ are made! Mon.-Fri.‚ 9 a.m.-2 p.m.‚ 14th & C Streets‚ SW. Tours available in several languages. Tickets given out before tours every 10 minutes. 202/622-2000 The FBI One-hour guided tours. Mon.-Fri.‚ 9 a.m.- 4:15 p.m. Located between 9th & 10th Streets on E Street
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are control circuits to represent. If we wanted to draw a simple ladder diagram showing a lamp that is controlled by a hand switch‚ it would look like this: The "L1" and "L2" designations refer to the two poles of a 120 VAC supply‚ unless otherwise noted. L1 is the "hot" conductor‚ and L2 is the grounded ("neutral") conductor. These designations have nothing to do with inductors‚ just to make things confusing. The actual transformer or generator supplying power to this circuit is omitted
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