Conductor Investigation Experiment LabReport Introduction This experiment is about to test how will the nichrome wire effect the ampere of the electric current. All the possible factor that will effect to the volt of the current • The Length of the wire • The Diameter of the wire • Temperature • Magnetism Aim To determine the effect of the length of the wire on the ampere of the electric current. Hypothesis Nichrome is an alloy(a metal made by combining two or more metallic elements)
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100 meters to 10 kilometers. You should see scalloping in the two-ray result‚ with an envelope that decays twice as fast (on log-log scale) as the free-space result. 2. (10) Given an RF pulse s(t) = 10−3 rect( t ) cos(2π870 · 106 t + π/6) volts .001 (2) • find S(f )‚ the Fourier transform‚ and sketch the energy density spectrum in the frequency domain • Find the complex envelope s(t) with respect to the reference cos(2π870 · 106 t). ˜ • find the energy delivered to a 50 Ω load
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BOGIN‚ JR. - The One‚ Only & Official - * HOME PAGE * ABOUT ME * DISCLAIMER * CONTACT ------------------------------------------------- Top of Form Bottom of Form Flyback driver #2: NE555 quasi-resonant 16. March 2012 This single transistor flyback driver topology was created in response to achieve higher efficiency and higher output voltages from ordinary CRT television flybacks (diode split flybacks)‚ for experiments such as x-rays or ionic lifters‚ without having to
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Name _____________________ Battery‚ resistance‚ and current – Lab 17 Go to http://phet.colorado.edu/en/simulation/battery-resistor-circuit and click on Run Now. Batteries‚ Resistance and Current “Battery-Resistor”: Check “show battery” and “show cores”‚ watch what happens‚ adjust some variables 1. Why do electrons (blue dots) move? Draw a diagram of the battery‚ label the flow of electrons. The flow of current (+) is opposite; draw this and note if toward or away from + terminal
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Planning: Risk Assessment: * I will handle the power supply carefully. * I am going to only use a maximum voltage of 2 volts. * I will be careful when handling the mains equipment. * I will make sure I have a clear space to work in and nothing on the floor around me. In this investigation‚ I will set up a simple circuit to be able to read the voltage and current when the length of wire changes‚ so I then can work out the resistance. I will be using constantan wire starting of with 1m length
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sure the switch is closed. 5.Measure and note down the temperature of the bulb with the thermometer 6.Turn on the power of the power supply 7.Measure down the P.D (v) and Current (a) and the temperature as you increase by .50 each time until 4.50 volts Diagram: Variables: Controlled Variables: Filament bulb of the same type Independent Variables: Voltage Dependant Variable: Current (that is what was measured due to the voltage change)‚ Temperature (increased as bulb got brighter) Results:
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Summary The objective of this experiment was to learn how to read different meters like the D.C. volt meter and the D.C. amperes meter. In all meters each big line is a major division and each little line in between is a minor division‚ and if there is a line smaller than the minor division lines then that would be a sub minor division. Each meter has a low‚ medium‚ and high range. For example on the D.C. volt meter the ranges go from top to bottom 150‚ 15‚ and 3.0. But on the D.C. ampere meter the ranges
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amperes (also called amps for short). Electrical current cannot just flow on its own; it needs something to "push" it. Voltage (also referred to as electric potential) is what pushes electrical current through wires. Voltage is measured in volts‚ and the symbol for volts is V. The general purpose is to determine the voltage of a potato; with this experiment we intend to answer the following questions: 1. How much voltage and/or current does it take to power the LED? Is there a certain voltage and/or current
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(A) and electrical resistivity (ρ) and volt‚ (V). II Procedure: Apparatus: DC power supply‚ milliammeters and ammeters‚ voltmeters‚ SPST switch‚ a “fused” connector‚ a 2-meter slide wire resistance‚ and mounted resistance spools. Variation of V and I‚ with R held constant 1 Connect the apparatus as shown in the Figure below‚ attaching the voltmeter last. Figure 1 2 Set the power to 4 volts. To begin with‚ set the voltmeter on the 0-5 volt rang and the milliammeter on the 0-1000
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then make the electromagnet stronger. Variables: Independent The independent variable which we can control is the amount of voltage we put through the electromagnet. In this case we have to change the amount of voltage to 2‚ 4‚ 6‚ 8‚ 10 and 12 volts. Dependant The dependant variable is the amount of paper clips that will cling to the electromagnet. Controlled The controlled variable is making sure that it is a fair test by having the same amount of coils‚ the same nail‚ the same paper
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