| Resistance and Electric Circuits | Lab 5 | | | The goal of the “Resistance and Electric Circuit” Lab was to determine the resistivity of a conducting wire given two known resistors. The main property of resistivity is that it represents how easily electrons can flow through a material. A Galvanometer is used to measure the current of the circuit and the Wheatstone Bridge is used to measure the resistances and determine the unknown resistance. This experiment also relates Ohm’s Law
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Colegio De San Juan De Letran Experiment no 4 AC Ohm’s Law Carandang‚ Carmela Geraldine M. Date Performed: Jan 28‚ 2013 ACT- 2ndyear Date Submitted: Feb 4‚ 2013 Remarks:_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Engr. C.D. Sanchez Instructor II. Theoretical Discussion Alternating
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Experiment 3: Oscillators and timers Introduction The NE555 chip which operates at 5v‚ utilizes two comparators for temperature stability. This chip is capable of producing oscillations. It is made up of 8 pins and its oscillation mode is controlled by two resistors and a capacitor. Each pin is set to perform a function. Pin 1 serves as ground. Pin 2 is the trigger - the input to the lower comparator which sets the latch that causes output to go high. Pin 3 serves as the output.
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In Unit 5 Activity 2 we were asked to predict and then find the brightness and flow rate of a closed circuit with a three cell battery pack‚ a long bulb‚ a capacitor parallel to the long bulb‚ and a round bulb. I originally predicted that the round bulb would be brighter when the circuit was first closed and when the circuit reached a steady state‚ and that the wire between the round bulb and the negative side of the battery would have a higher flow rate than the other wires. However‚ in the steady
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Laboratory Long report. Electronic laboratory practice Abstract: The aim of this laboratory was to make us familiar with how to use the different types of electronic equipment and how to accurately use them to make measurements. The equipment used in this laboratory included: (i) the signal generator which was used to supply the power used in the various procedures‚ (ii) The oscilloscope which was used to view and record the waves produced from the AC currents and then make relevant calculations
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Ex.No Date Aim: To find resistance of a given wire using metre bridge and hence determine the specific resistance of its material. Apparatus: A meter bridge ‚a Leclanche cell ‚ a galvanometer ‚a resistance box‚ a jockey‚ a resistance wire or resistance coil‚ a metre scale‚ a set square and connecting wires Procedure: 1.Draw the circuit diagram as shown in figure and arrange the apparatus according to the arrangement diagram. 2. Connect the resistance wire or resistance coil whose resistance
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COMMON MISTAKES AND HOW TO AVOID THEM Phy X: ELECTRICITY 1. Topic Direction of flow of current. Common slips made Confusion between direction of flow of current and direction of movement of electrons Confusion in use of symbols- Is ampere written as A or amp. V=W/Q is often remembered wrongly. In questions where you have to check the resistance from the graph see what is plotted along the x and y axis. Reason why alloys are used to make elements of electric irons and heaters is not because
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Question&answer and the h-parameters are given by: hie – The input impedance of the transistor (corresponding to the emitter resistance re). hre – Represents the dependence of the transistor’s IB–VBE curve on the value of VCE. It is usually very small and is often neglected (assumed to be zero). hfe – The current-gain of the transistor. This parameter is often specified as hFE or the DC current-gain (βDC) in datasheets. hoe – The output impedance of transistor. This term is usually specified as an admittance
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source is called the primary winding or input winding. The winding connected to the loads is called the secondary winding or output winding. Introduction The open-circuit test‚ or "no-load test"‚ is one of the methods used in electrical engineering to determine the no-load impedance in the excitation branch of a transformer. In this experiment‚ open-circuit test is conducted on single-phase and three-phase transformer to determine the iron core resistance‚ Rc and magnetized reactance‚ Xm. The purpose
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Impedance Probe Test‚ Adult An impedance probe test is a procedure to measure the amount of acid in the tube that connects the mouth to the stomach (esophagus). The test shows the levels of stomach acids and liquids in your esophagus over a 24-hour period. This helps diagnose gastroesophageal reflux disease (GERD). The test may also be called esophageal impedance pH monitoring or 24-hour esophageal pH test. WHY IS THIS TEST DONE? You may need an impedance probe test if you have symptoms of GERD
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