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Structure and Classifiion of Viruses
Viruses are small obligate intracellular parasites, which by definition contain either a RNA or DNA genome surrounded by a protective, viruscoded protein coat. Viruses may be viewed as mobile genetic elements, most probably of cellular origin and characterized by a long coevolution of virus and host. For propagation viruses depend on specialized host cells supplying the complex metabolic and ...
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Digital Multimeter Working Principle | Electrical Academia
Digital Multimeter. A digital multimeter (DMM) is a multifunctional meter that displays its electrical quantitative values on an LCD screen. A digital multimeter much like an analog meter, it is able to read voltage, current, and resistance. What makes a digital multimeter differ from the analog meter is its ability to display measured ...
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Construction of Three Phase Induction Motor | Electrical4U
Feb 24, 2012 · The three phase induction motor is the most widely used electrical 80% of the mechanical power used by industries is provided by three phase induction motors because of its simple and rugged construction, low cost, good operating characteristics, the absence of commutator and good speed regulation. In three phase induction motor, the power is transferred from stator to .
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Transformer BasicsWorking principle,Construction,Types ...
Dec 23, 2011 · E B / E A = V B / V A = N B /N A = K. This constant K is known as voltage transformation ratio. (1) If N B >N A, that is K>1, then transformer is called stepup transformer. (2) If N B <1, that is K<1, then transformer is known as stepdown transformer. Again for an ideal transformer, Input V A = .
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DC Motors vs. AC Motors (The Ultimate Difference) | MachineMfg
DC Motor. The DC power supply current flows along the positive pole of the power supply to the left side of the brush. The brush and the commutator rub against each other. The current flows through the left commutator (which has two left and right commutator segments) that flow into the coil and flow out from the right side of the coil.
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What is TIG Welding : Principle, Working, Equipment's ...
Apr 04, 2017 · The first unit of equipment's is power source. A high current power source needed for TIG welding. It uses both AC and DC power source. Mostly DC current is used for stainless steel, Mild Steel, Copper, Titanium, Nickel alloy, etc. and AC current is used for .
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What is AC Motor ? Types, Principles and Constructions ...
Jun 10, 2020 · AC motor is an abbreviation for Alternating Current motors invented by Nicola Tesla to transform energy from electrical into mechanical just like DC motors (Directional Current motor). AC motors may be found in fans, hairdryers, clocks, washing machines, and many other applicants providing services in offices, factories, businesses, etc.
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4 Types of DC Motors and Their Characteristics
Nov 17, 2019 · Series DC motor. In a series DC motor the field is connected in series with the field is wound with a few turns of large wire because it must carry the full armature current. A characteristic of series motors is the motor develops a large amount of starting torque. However, speed varies widely between no load and full load.
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Squirrel Cage Induction Motor: Working Principle ...
Jan 08, 2019 · We saw the construction of the Squirrel cage induction motor. The main difference between slip ring and squirrel cage induction motor is the rotor construction. Motors have main two parts in construction: stator and rotor. In these motor, the rotor is squirrel cage type. This rotor is made up from parallel aluminum or copper bars.
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What is the function of a commutator in a DC motor and a ...
Answer (1 of 21): Commutators are used in Direct Current (DC) machines such as DC Generators and DC Motors. They are also used in universal motors which run on AC. They serve two functions * To provide a path for power to enter or leave the rotor armature windings. * To switch the direction of...
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Construction and Principle of Operation
A permanent magnet machine can have a configuration almost identical to that of the conventional synchronous machines with absence of slip rings and a field winding. Construction . Fig. shows a cross section of simple permanent magnet synchronous machines. It consists of the stationary member of the machine called stator.
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Stepper Motor : Basics, Types and Working
Unlike a brushless DC motor which rotates continuously when a fixed DC voltage is applied to it, a step motor rotates in discrete step angles. The Stepper Motors therefore are manufactured with steps per revolution of 12, 24, 72, 144, 180, and 200, resulting in stepping angles of 30, 15, 5,, 2, and degrees per step.
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Online tool to create sketch, painting, drawing, outline ...
Steps to convert Image to sketch: For creating sketch effect, first you need to browse your high quality photo and then press the UPLOAD button, once your photo uploads SKETCH IT button will be visible, if you want to select additional option you may select now, then press the SKETCH IT button, elegant sketch will be appeared in the photo frame ...
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Engine Management System (EMS) Working Explained
Feb 18, 2021 · Engine Management System (EMS): EMS stands for Engine Management System, which consists of a wide range of electronic and electrical components such as sensors, relays, actuators, and an Engine Control work together to provide .
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Electrical Wiring Systems and Methods of Electrical Wiring
May 04, 2021 · Line Diagram. It is a simplified notation of an electrical system, also called as OneLine Diagram or Single Line Diagram. It is similar to the block diagram except that various electrical elements such as transformers, switches, lights, fans, circuit breakers, and motors are represented by standard schematic symbols.. It consists of symbols to represent the components and lines to represent ...
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