the half-wave rectified circuit‚ initially with no load resistor attached. For simplicity‚ the transformer has been replaced with a low voltage a.c. source. The resulting oscilloscope graph for this circuit is as follows: From the graph you can see that the output voltage shown in red holds its value at the maximum voltage‚ once the charge has built up on the capacitor during the initial charging cycle. As there is no load resistor applied to the circuit none of this charge comes off the
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through a resistor they collide nwith stationery particles in the resistor. These collisions cause the resistor to heat up this can therefore change it’s resistence. There are many different kind of resistors an example of this is (LDR‚ THERMISTER). LDR (Light-dependent Resistor) An LDR changes it’s resistance depending on how much light there is eg: In Bright light the resistance falls In darkness‚ the resistence is highest Thermistor( Tenperature-Dependent Resistor) A thermistor
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first capacitor was stored in the memory. Therefore when more charge was transferred it was added to what was already there. In addition‚ the charge after transferring the unknown was 1.5 µF. lastly‚ through a set of graphs we determined that when a resistor is connected to a charged capacitor‚ the charge stored on the capacitor will flow out due to the charge converting to heat on the resister. Objective: The objective of this lab was to measure the electrostatic force between two objects as a
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JPN Pahang Teacher’s Guide Physics Module Form 5 Chapter 7: Electricity CHAPTER 7: ELECTRICITY 7.1 CHARGE AND ELECTRIC CURRENT Van de Graaf 1. What is a Van de Graaff generator? Fill in each of the boxes the name of the part shown. A device that produces and store electric charges at high voltage on its dome + + + + roller + + + + + + Metal dome dome rubber belt roller motor -1- JPN Pahang Teacher’s Guide Physics Module Form 5 Chapter 7: Electricity
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supply voltage Vdd (+5 V). A resistor divider network is used at the input end to map the range of input voltage to the ADC input voltage range (0-5 V). The technique is demonstrated for input voltage ranging from 0-20 V‚ but it can be extended further with proper selection of resistors and doing the math described below. Circuit Diagram Since the PIC port cannot take 20V input directly‚ the input voltage is scaled down using a simple resistor divider network. The resistors R1 and R2 scale down the
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PARITY GENERATOR Vinti Thakkar Swetha Jain Riddhi Vira TE : B-3 TE : B-3 TE : B-3 Roll no : 0812103 Roll no : 0812106 Roll no : 0812114 Email : vinti.thakkar Email : shweta.mjain Email : riddhi1312 @gmail.com 2012@gmail.com
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FAKULTI KEJURUTERAAN ELEKTRIK UNIVERSITI TEKNIKAL MALAYSIA MELAKA SEM 1 SESSION 2013/2014 REPORT BEKU 2321 ELECTRONIC TECHNOLOGY LABORATORY Experiment 1: Group Members : Member Name Matric Number Elabbas Abdelhamied B011210274 Ahmed Galal B011210296 Omer Hassan B011210288 Program/Section : 2BEKE Date : 23-10-2013 Checked By :______________________________________ Score : Report Obtained 1.0 Abstract 2 Abstract is clear and well described
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the positive terminal of the capacitor if an electrolytic capacitor. 3 Initially‚ switch S should be closed. Figure 5-1 Theory: When the switch is opened‚ the capacitor will be discharged through the resistor of the voltmeter. The potential difference V across resistor will decrease exponentially with time t. The formula which relates V and t is ℮ Therefore: Procedure: 1 Initially the switch was closed. 2 The initial reading of the voltmeter was recorded. 3 Open the switch
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CMRR‚ low output impedance‚ and low output offset. 2. What components do you need to construct a basic instrumentation amplifier? Three op-amps and seven resistors are required to construct a basic instrumentation amplifier. 3. How is the gain determined in a basic instrumentation amplifier? The gain is set by the external resistor Rg. 4. In a certain AD622 configuration‚ Rg = 10 k ohm. What is the voltage gain? Av -= 6 12-2 1. In what types of applications are isolation amplifiers
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Assignment Summary The following project was carried out in partial fulfillment of the module Mecatronics System Design. This project includes research‚ design and development of Arduino code and a suitable circuit in order to create a dusk indicator using a voltage comparator. Task 1 Activate a yard light represented by an LED using an LDR. The level of light dected by the LDR should be compared to the value currently set by a linear potentiometer. The ower can vary the potentiometer to vary how
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