connected‚ more voltage are produced. Our design is to connect one container of vinegar‚ zinc‚ and copper to another container with the same materials to produce our needed voltage. If ever we had reached it‚ the starting copper wire and the last copper wire will be the wire connected to our LED bulb to light it up and hopefully to let other battery-powered objects to run with this kind of battery. In our results‚ we were able to light up our LED bulb with an amount of approximately 4.25 volts while
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Name ___Sarah Carter___ Wire Resistance and Ohm’s Law Go to http://phet.colorado.edu/simulations/sims.php?sim=Ohms_Law and click on Run Now. Wire Resistance and Ohm’s Law Procedure Part I Wire Resistance: open the PhET Simulation Electricity‚ Magnets‚ and Circuits Resistance in a Wire. As wire length (cm) increases‚ the resistance (Ω) ___increases____ As wire area (cm2) increases‚ the resistance (Ω) ___decreases___ As wire resistivity (Ωcm) increases‚ the resistance (Ω) ____increases__
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sends out to all the computers except the senders on the network. This can cause a collision on the network if more than one piece of data packet is sent across the wire. CSMA/CD helps with the collisions by using a system where before data packet is sent‚ it can inspect the wire for data packet‚ and if there is data packet on the wire it sets a random timer and investigates again to find out if it is able to send the data packet. Now for this being the way the hub works all the computers share the
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Locked In: An Analysis of the Environment in “The Cage” The wire of the fence bounds the man within its clutches. Escape seems to be in sight‚ but is lost when he seems to have reached it. “The Cage” by Heinrich Boll is a short story about a man who is closed in by the boundaries of metal wire as a prisoner‚ looking for relief. The man ends up getting a miserable fate. In Heinrich Boll’s “The Cage‚” the author signifies how a person can change due to miserable environmental conditions and loss
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internal resistance of a cell depends. Apparatus :- A Potentiometer ‚ a battery (battery eliminator) ‚ two way keys ‚ a rheostat of low resistance ‚ a galvanometer ‚ a high resistance ‚ an ammeter ‚ a cell ‚ a Jockey ‚ a set square ‚ connecting wires ‚ water bath ‚
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DEPARTMENT OF MECHANICAL ENGINEERING ALL Sections must be completed using Block Capitals or typed CODE AND TITLE OF COURSEWORK Course code: MECH1008 Title: OSCILLATION OF A TORSIONAL PENDULUM STUDENT NAME: CHEW KOK HAO‚ DANIEL DEGREE AND YEAR: MENG IN MECHANICAL ENGINEERING LAB GROUP: 1 DATE OF LAB. SESSION: 03 OCT 2011 DATE COURSEWORK DUE FOR SUBMISSION: 10 OCT 2011 ACTUAL DATE OF SUBMISSION: 09 OCT 2011 LECTURERS NAME: Dr. PAUL FROMME PERSONAL TUTORS NAME: Dr. A R GREIG
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established experimentally that the current in a metal wire is directly proportional to the potential difference V applied to its two ends‚ provided that the physical conditions such as temperature remain constant: I∞V Exactly how much current flows in a wire depends not only on the voltage‚ but also on the resistance the wire offers to the flow of electrons. Electrons are showed down because of interactions with the atoms of the wire. The higher the resistance‚ the less the current for a
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(Solar simulator) 6. DC power supply 7. Wires Experimental Procedures 1. Set the first mulitmeters to mA for it to function as ammeter and set the second multimeter to V for it to function as voltmeter. 2. Set up the Xenon lamp with reflector by connected the wires to the DC power supply as shown in Fig. 1 3
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(Note: some recent copper coins‚ including the newer U.S. pennies‚ contain low amounts of copper mixed with zinc. If in doubt‚ use a pure copper strip.) They are stuck into the lemon‚ and wires are attached to each one. The wires should be attached securely to form a good electrical contact. If the other ends of the wires are attached to a small light bulb (flashlight bulb) there should be sufficient current to light it. Note that the metal pieces should be clean‚ and that they should not touch inside
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THE SONOMETER AIM: The aim of this experiment is to investigate the connection between the tension‚ length and frequency of a stretched wire. YOU WILL NEED: A sonometer and wires‚ a set of slotted masses‚ a ruler‚ a Newton meter‚ a set of tuning forks WHAT TO DO: Set up the apparatus as shown in the diagram. Two experiments should be performed: (i) variation of frequency (f) with tension (T) (keeping the length constant). (ii) variation of frequency with length (L) (keeping
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