CONTENT TOPIC Page No. Acknowledgement 03 Objective 04 Introduction 05 Design
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Experiment 13 Charging and Discharging Capacitors 1. Introduction In this experiment you will measure the rates at which capacitors in series with resistors can be charged and discharged. The time constant RC will be found. Charging a capacitor. Consider the series circuit shown in Fig. 1. Let us assume that the capacitor is initially uncharged. When the switch S is open there is of course no current. If the switch is closed at t=0‚ charges begin to flow and an ammeter will be able
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of values 0.33 uF and 0.47uF‚ resistors of values 56k‚ 5.6k‚ 680 and 6.8k‚ a 2N3904 NPN transistor. Equipment needed for measuring the input and the output signals are a function generator‚ an oscilloscope‚ multimeter and a +15V DC power supply. However‚ because this experiment is a simulation activity‚ Multisim simulator was used to conduct the experiment. B. Procedure To construct the amplifier circuit shown in fig. 1‚ connect the 56k and 5.6k resistors and the 0.33uF capacitor in parallel
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1 IDENTIFICATION OF BASIC ELECTRONIC COMPONETS THEIR CHARACTERISTICS & TESTING 1.0.0 INTRODUCTION An electronic circuit is composed of various types of components. Some of these components are termed as active components because they take part in the transformation of the energy while other components‚ which only dissipate or store energy‚ are called as passive elements. The vacuum tubes‚ rectifier‚ transistors are some of-the common active while the resistances‚ which dissipate the power
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law are use to find the three node-voltages‚ vA‚ vB‚ and‚ vC‚ of the given circuit (See Figure 1 below). KCL uses node currents and then applies Ohm’s law to derive an equation in terms of node voltages‚ resistors‚ and source voltages. These two laws are only needed when there is: known resistors‚ and known source voltage. This circuit is a simple circuit because there is only one source voltage and no voltage source shared between two loops. Figure 1: Circuit Layout Section 2 goes over the
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the schematic. Figure 1: Select Resistor Figure 2: Select DC voltage For example to select resistors and the DC source shown in Figure 3 click on Place/ Components. In Group select Basic scroll down to Resistors and select the value of the resistor needed to construct the circuit‚ for this example select 1k. To place DC source click on Sources in Group and select DC Source. As shown in Figure 1 and Figure 2 respectively. Figure 3: DC Source & Resistors Virtual Components Components
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on how you feel. For example‚ a romantic dinner for two isn’t so romantic under a 1‚500 watt light bulb. Also for some people‚ it may not be too easy to read with a single light bulb either. We will be conducting experiments testing which variable resistor has the most and least resistance to the electricity. Now‚ instead of having one specific shade of light‚ we can adjust it to however bright or dim we want it to be to help in different situations. Problem What materials can be used to make
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Baseball Scoreboard Lee King‚ Henry Johnson‚ Demetrius Jackson‚ Bennie Chandler‚ Marcus Rice Parts List 3-Green LED’s Resistor 2-Red LED’s Resistor 5-330 Ohm Resistors 2-74175 OR Gate 3-1 k ohm Resistors 2-NO Push Buttons 2-555 Timers 1-0.01 uf Capacitor 1-0.1 uf Capacitor 1-10 k Ohm Resistor 1-22 k Ohm 1-1.0 M Ohm Information A counter uses flip-flops to “remember” the last count until the clock pulse occurs. A shift register can store several events
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555 gets its name from the three 5 eke resistors used in typical early implementations‚[2] but Hans Camenzind has stated that the number was arbitrary.[3] The part is still in wide use‚ thanks to its ease of use‚ low price and good stability. As of 2003[update]‚ it is estimated that 1 billion units are manufactured every year.[3] Depending on the manufacturer‚ the standard 555 package includes over 20 transistors‚ 2 diodes and 15 resistors on a silicon chip installed in an 8-pin
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three ways: »E=IxR »I=E/R » R = E/I PHYS 401 Physics of Ham Radio 29 PHYS 401 Physics of Ham Radio 30 Resistors Mnemonic: “Black Bears Run On Young Grass By Violets Growing Wild” PHYS 401 Physics of Ham Radio 31 Resistor Types - Precision PHYS 401 Physics of Ham Radio 32 Resistors - Film Type PHYS 401 Physics of Ham Radio 33 Resistors - Variable PHYS 401 Physics of Ham Radio 34 Calculating Resistance • Parallel: • Series: R=R1+R2+R3+R4
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