I. Introduction a. Back ground of the Study Triac The TRIAC is a three terminal semiconductor device for controlling current. It gains its name from the term TRIode for AlternatingCurrent. It is effectively a development of the SCR or thyristor‚ but unlike the thyristor which is only able to conduct in one direction‚ the TRIAC is a bidirectional device. TRIAC The TRIAC is an ideal device to use for AC switching applications because it can control the current flow over both halves of
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wheat stone bridge. (16)Derive an expression for the magnetic induction at a point on the equatorial line of a bar magnet. (17)Discuss Bohr’s theory of the spectrum of hydrogen atom. (18)What is rectification? Explain the working of a Full wave rectifier. Section – C III Long answer4 questions 2×8 = 16 M (i) Answer any two questions (ii) Each question carries ‘eight’ marks (19) Define Snell’s law. Using a neat labeled diagram derive an expression for the refractive index of the material
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Chhattisgarh Swami Vivekanand Technical University‚ Bhilai SCHEME OF TEACHING AND EXAMINATION BE (ELECTRICAL ENGINEERING) III Semester Sl.No. Board of Studies Subject Subject Code Periods per week L T P Scheme of Exam Theory/Practical ESE CT TA Total Credit L+(T+P) /2 Marks Appl. Mathematics 324351(14) Mathematics III 3 1 80 20 20 120 4 2 Electrical Engg. 324352(24) Electrical Machines -I 4 1 80 20 20 120
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controller in order to obtain the electromagnetic torque needed to reach the desired speed. Current controller controls the armature current by computing the appropriate thyristor firing angle or by using the firing gate angle. This generates the rectifier output voltage needed to obtain the desired armature current and thus the desired electromagnetic torque. This report also includes the work already completed and work planned for the next semester. Figure1: Proportional Integral control (PI)
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DISTILLATION HISTORY • Distilling was used as early as 3500 BC in Mesopotamia where perfume makers had developed it as a technique for isolating the scented oils of flowers and plants‚ what we know as “attar”. • Around 1100 AD wine was first distilled to make spirit by Irish monks who travelled around Europe. • The results of distillation were considered to have magical powers and this led to alcohol being called “water of life” or “usige beatha” in Gaelic‚ “eau de vie” in French
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single-switch chopper was discussed in Chapter 2‚ where it was shown that the average output voltage could be varied by periodically switching the battery voltage on and off for varying intervals. The principal difference between the thyristor-controlled rectifier and the chopper is that in the former the motor current always flows through the supply‚ whereas in the latter‚ the motor current only flows from the supply terminals for part of each cycle. A single-switch chopper using a transistor‚ MOSFET or
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Mr.A Kumar Tiwari et al Int. Journal of Engineering Research and Applications ISSN : 2248-9622‚ Vol. 4‚ Issue 2( Version 1)‚ February 2014‚ pp.393-395 RESEARCH ARTICLE www.ijera.com OPEN ACCESS Automatic Power Factor Correction Using Capacitive Bank Mr.Anant Kumar Tiwari‚ Mrs. Durga Sharma‚ Mr.Vijay Kumar Sharma Dr. C.V. Raman Institute of Science and Technology Bilaspur. Assistant professor Dr. C.V. Raman Institute of Science and Technology‚ Bilaspur. Assistant professor Lkct Indore (M.P.)
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SECURITY SYSTEM USING RFID A PROJECT REPORT Submitted by ANISH ANTONY (080107117005) JISU JOHN ISAC (080107117039) KRISHNA PRABHA R (080107117055) KUNAL BHARDWAJ (080107117056) In partial fulfilment for the award of the degree of BACHELOR OF ENGINEERING in ELECTRONICS AND COMMUNICATION ENGINEERING PARK COLLEGE OF ENGINEERING AND TEKHNOLOGY‚ KANIYUR‚ COIMBATORE-641659. ANNA UNIVERSITY OF TECHNOLOGY COIMBATORE 641
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Waves Assignment Microwave Ovens Microwave ovens‚ or microwaves‚ are kitchen appliances which use microwave radiation to cook‚ heat or defrost food. Properties of a microwave: Microwaves are electromagnetic waves with wavelengths longer than those of Terahertz (THz) wavelengths‚ but relatively short for radio waves. Microwaves have wavelengths approximately in the range of 30 cm (frequency = 1 GHz) to 1 mm (300 GHz). The word microwave generally refers to "alternating current signals with
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BIOAP 458‚ 2012 Name: _______________________ Raw Score: ________/ 102‚ ________% PROBLEM SET 7 Cardiac Electrophysiology 1) (8 pts.) Match the most appropriate pairs _F__ AV node (atrioventricular node) _E__ gap junctions _G__ action potential generated by ventricular myocytes _H__ functions as the pacemaker of the whole heart _D__ calcium _C__ Bachmann’s bundle _A__ Bundle of His _B__ action potential generated by pacemakers Prof. Beyenbach VRT 8014 A. ventricular conduction system that distributes
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