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    Hall Effect

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    silicon‚ which has high quality as well as reasonable prices. Scientific Concepts and Theories The Hall effect is the production of a voltage difference across an electrical conductor‚ transverse to an electric current in the conductor and a magnetic field perpendicular to the current. In this experiment‚ I use the Hall effect as a method to measure the amount and type of carriers present in semiconductors. From the figure above‚ we can conclude that when we add a magnetic field in a z direction

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    c project

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    f. is induced in the neighbouring coil‚ that is‚ if a varying current is set-up in a circuit induced e.m.f. is produced in the neighbouring circuit. The varying current in a circuit produce varying magnetic flux which induced e.m.f. in the neighbouring circuit. INTRODUCTION A transformer is an electric device which is used for changing the A.C. voltages. A transformer is most widely used device in both low and high current circuit. As such transformers are built in an amazing strength

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    Circuit 3

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    3. Ohm’s law is represented by the equation I = V/R. Explain how the current would change if the amount of resistance decreased and the voltage stayed the same. Ohm’s law states current is dependent on voltage and resistance. As in any mathematical equation if we change one variable in the equation on one side and leave the other variable constant‚ the other side of the equation will change as well. In this case since current is equal to voltage divided by resistance. If we keep voltage the same

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    Power Factor Correction

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    electrical energy which is generated‚ distributed and utilized in sinusoidal form. This type of energy production are called alternating current (AC) source. Due to the presence of different types of loads in a circuit‚ the phase difference or angle (θ) is form between the voltage and the current vector. Figure1 below shows the typical vector diagram of AC voltage and current. This angle (θ) is called the power factor angle and the cosine of this angle is called the power factor. Power factor may be defined

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    multimeter for resistor measurements. In the second part of the experiment our aim is to see the operation of function generator and DC voltage source‚ how to use multimeter to measure AC and DC voltage and how to use multimeter to measure AC and DC current. After completing these parts our aim is to see the operation oscilloscope and analyze simple circuits. Experimental work; In the first part of the experiment we read the colors of given resistors. There were 4 resistors in the kit. Three of

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    A.C.Bridges

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    Alternating current bridges….it’s applications and various perspectives revealed….. ALTERNATING CURRENT BRIDGES:- INTRODUCTION:- A bridge circuit is a type of electrical circuit in which two circuit branches (usually in parallel with each other) are "bridged" by a third branch connected between the first two branches at some intermediate point along them. The bridge was originally developed for laboratory measurement purposes and one of the intermediate bridging points is often adjustable when

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    to obtain a graph of output voltage-load current characteristic at 700 rpm which is 50% rated speed for all the generators. From the results‚ we analyze the characteristics of each type of generator. The separately excited‚ is driven at constant speed and has a fixed field current‚ the output voltage will decrease with increased load current. Moreover for series wound generator‚ the external characteristic curve shows‚ the voltage output starts at current equal to zero and increase until a peak point

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    Electricity and Magnetism

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    direction in which they are connected.) . Electric current The energy supplied by the potential difference is delivered to the circuit by the electric current flowing through the circuit. The current in a metal is actually a flow of electrons (tiny particles that are part of an atom.) The 1.5V cell supplies enough energy to the current so that it delivers enough energy for the bulb to be normally bright. Series circuits All of the current passes through each of the two identical bulbs‚ the

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    on the multimeter. 2. Connect the batteries in series using the jumper wires to produce 4.5 V. The ammeter‚ battery and wire wound around the pipe should be connected as shown in figure 1. 3. Record the initial current reading shown on the ammeter. As the current flows in the magnet wire‚ the temperature of the wire will be increasing. Measure the temperature using the infrared thermometer. Record the ammeter reading as the temperature increases 10°C before disconnecting the wire from

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    the pilots being 90 % can any one imagine such a huge cut in salary. In the globalized market scenario‚ the impact of recession at one place/ indusrty/ sector perculate down to all the linked indusrty and this can be truly interpreated from the current market situation which is faced by the world since approx 2 month and still the situation is not in control inspite of various measures taken to fight back the recession in the market.The badly hit setor at present being the financial sector‚ and

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