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Cross Sectional R R
864 wordsDetermination of r for a Metallic Conductor To determine the resistivity (r) of a given sample of wire Physical factors that affect the resistance of a conductor are length, cross sectional area and a constant that depends upon the material called the resistivity. The resistance per unit length is the same all along a uniform wire so if the resistance of different lengths of a wire is found out, the resistivity can be calculated. Resistance of a material, R = Voltage / Current Resistance of a co...
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Atmel Avr Microcontrollers Giant Magnetic Resistor Applications
1,792 wordsA Microcontroller-based scheme for measurement of magnetic field position using Giant Magnetic Resistor (GMR) in Contactless Measurement and Robotics Omidreza Esmaeili Motlagh Faculty of Electronic Engineering, Mazandaran University (UMZ), Baby, Iran Magnetic sensors in contactless applications: Magnetic sensors can be used for all sorts of applications where a contactless measurement of position and orientation is required. For instance in cars, where a large number of sensors are employed, mag...
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Aluminum Foil Magnetic Force
1,253 wordsSummary of Investigation An investigation was carried out to find out the relationship between the force created in a wire (or solenoid) when current flowed through it and the force from gravity. This was investigated by connecting a solenoid up to a variable power pack and then placing a light ring of either copper or aluminum around the solenoid. When the current flows through the solenoid, a magnetic force created from the solenoid should make the ring 'jump' up or levitate. When carrying out...
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8 And 10 Ohms 127 5 135 Voltage
462 wordsPurpose: The purpose of this lab is to see if and how Ohms Law applies in a circuit that doesnt have a resistor. Theory: Equations Resistance = Voltage/Current R = V/I Voltage = Current Resistance V = I R Current = Voltage/Resistance I = V/R Hypothesis: I hypothesize that the resistance will be between 8 and 10 ohms. Procedures: Assemble a circuit with a multimeter, to measure the current, a voltmeter, to measure the volts, and a resistor that will provide the resistance. Next, a hand-held gener...
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D 1 1 N
244 wordsThe Design DESIGN PHILOSOPHY The purpose of this project was to gain some experience with Pspice and to design Uncontrolled Single Phase Full Wave Rectifier with the following two options of output voltage filtering: Option A: With a capacitor. Option B: With an inductor. Uncontrolled Single Phase Rectifier converts AC voltage to DC Voltage. The objective of the design was to achieve ripples within 5 % of the rated output voltage, high power factor and low current harmonic distortion. In order t...
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Ve Vb Vc Vbe Ve Vb Vc 61549
1,768 wordsThe objective Don John Purpose The objective of this lab is to introduce the Bipolar Junction Transistor (BJT). A BJT is a three terminal device composed of an emitter, base, and collector terminals. In this lab we will introduce two major types of BJT? s: npn and pnp. The first, npn, has an n-type emitter, a p-type base and a n-type collector. On the other hand the pnp has a p-type emitter, a n-type base, and a p-type collector. Also the transistor consists of two major pn junctions, the emitte...
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Electrical Energy Long Distance
245 wordsA Electrical Energy Electrical Energy A capacitor can store electrical energy. Connecting it across a resistor or other device discharges it. Across the resistor there is a potential difference that creates the electric current. When the charge in the capacitor decreases, at the same time the voltage decreases. As a result the rate at which the capacitor is discharged, which is the current, is decreased. The outcome of this is that the capacitor will be completely discharged meaning that both th...
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Circuit Under Test 555 Timer Ic Logic
466 wordsLOGIC PROBE SUMMARY Logic Probe is one of the basic troubleshooting tools for common electronic logic circuits (TTL circuits). Almost all video game circuit boards are built using TTL chips. These chips will occasionally fail and the Logic Probe is a tool that affords us a look into what may be failing, and it s a very handy measuring device used to determine output logic levels. The 555 timer IC is used in this circuit. The 555 timer IC uses power supply voltage from about 5 volts up to 18 volt...
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Antenna Lc Circuit Remote Cutoff Tubes Power
2,637 wordsHistory Of The American Vacuum Tube AM History Of The American Vacuum Tube AM RadioEngineeringAA 5 History AA 5 History History of the AA 5 (All American 5 ive) AM tube radio Possibly the longest lived consumer electronic product design was the five tube AC/DC AM radio. Virtually every household had at least a few over the years. These radios were low cost, and one expensive item designed out was the power transformer. Thus the series heater string, and using the powerline directly rectified for...
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Inversely Proportional Directly Proportional
1,101 wordsInvestigation Of Four Resistors Connected In Series Investigation Of Four Resistors Connected In Series And In Parallel. Investigation of four resistors connected in series and in parallel. Background: Resistance is what opposes the flow of electrons in an electric current through a conductor. Resistors are conductors that have a high resistance. A conductor is the material through which an electrical current flows. ? The Resistance, (R) of any conductor is given by the equation R = V/I? ? ? ? ?...
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One Shot Low Cost
918 wordsWhen a beginner to electronics first looks at a circuit board full of components he / she is often overwhelmed by the diversity of do-dads. By looking at the diagrams bellow you can identify some of the simple components and their schematic symbol. Now you are able to call them resistors and transistors instead of Whatchamacallits. Electronic component are classed into either being Passive devices or Active devices. A Passive Device is one that contributes no power gain (amplification) to a circ...
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Positively Charged Copper Wire
2,325 wordsAim: -To find out what factors affect the resistance of a wire (besides current of temperature. ) We must use two different variables. Variables: -Variables Chosen Variables Length of wire. Thickness Type of wire. Chosen Variable: -I have chosen length of wire as one as my variables because it will give me a good range of results. I will be able to compare the results from the shortest wire to the longest. I will start at 100 cm then I will take 10 cm off each time until I get to 50 cm. (100, 90...
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Light Bulb R 2
861 wordsABSTRACT Ohms Law and Kirchhoff's rules is fundamental for the understanding of dc circuit. This experiment proves and show how these rules can be applied to so simple dc circuits. INTRODUCTION In the theory of Ohms Law, voltage is simply proportional to current as illustrated in the proportionality, V = RI. As shown in this relation, V represent voltage which is the potential difference across the two ends of a electrical conductor and between which an electric current, I, will flow. The consta...
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