PART I CHAPTER III DIODES APPLICATIONS –SPECIAL PURPOSE DIODES OBJECTIVES 3.1 I-V- characteristics of normal and zener diode and measurement of static and dynamic resistance 3.2 I-V characteristics on CRO 3.3 Clipping circuits using diodes 3.4 Clamping circuits using diodes 3.5 Diode as a voltage multiplier 3.6 Diode used as a meter over current protection INTRODUCTION SEMICONDUCTORS Semiconductors are materials which are used to manufacture all electronic and optoelectronic devices
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highest voltage was Zn-C(Zinc and Carbon)‚ with an average of 1.02 volts. The second highest combination was Cu-Zn(Copper and Zinc)‚ which produced a mean of .86 volts. The third highest reading was C-Mg(Carbon and Magnesium)‚ with a voltage of .67. The fourth highest combination belonged to Cu-Mg(Copper and Magnesium)‚ with .52 volts. The fifth highest combination of electrodes was Zn-Mg(Zinc and Magnesium)‚ which created .37 volts. The sixth
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a room and connected to electrodes. The teacher and the researcher would proceed to the next room which contained an electric shock generator and a set of controls labeled 15 volts to 375 volts to 450 volts. The 15-volt control was also labeled as Slight Shock‚ 375 volts was labels as Danger: Severe Shock and the 450-volt control was labeled as
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1. Fixed wiring methods shall be as provided for the following except for. a. audio signal processing b. amplification c. reproduction equipment d. canopy lighting system 2. According to the code‚ only such electric wiring‚ raceways‚ and cables used directly in connection with the elevator or dumbwaiter‚ including wiring for signals‚ for communication with the car‚ for lighting‚ heating‚ air conditioning‚ and ventilating the elevator car‚ for fire detecting systems‚ for pit sump pumps‚ and for heating
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Introduction and Objective The action potential is an impulse of electrical activity. Action potential occurs when a neuron sends messages electrochemically down an axon called a nerve impulse. When a neuron is not stimulated or inactive‚ it is at resting potential. When a neuron is at rest‚ the electrical charge on the inside of the neuron is negative while the electrical charge on the outside of the neuron is positive. The resting membrane potential of a neuron is about -70 mV (mV = millivolts)
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wired up to the electric shock generator. So that the ‘teacher’ (the real participant) believed the electric shock generator was real‚ he was given a 45 volt electric shock. The electric shock generator had a row of switches marked from 15 to 450 volts in 15 volt increments with adjectives describing how severe the shock was‚ and 435 and 450 volts were labelled “XXX”. The real participant was taken to an adjacent room where he was unable to see the ‘learner’ and could only hear him. Every time the
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As the process was rigged‚ they all ends up being teacher and the learner is the confederate. (Meyer 97; Wortman‚ Loftus and Weaver 608-9; Franzoi 297). Before the experiment start‚ the participant (teacher) was being given a 45-volt shock to let them relate to what the learner will be experiencing and to make them believe that the generator is authentic. (Franzoi 297; Meyer 98; Wortman‚ Loftus and Weaver 608-9). The learner is in one room‚ the teacher and the experimenter (wearing
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most satisfying reward is the recognition of those achievements. I have been in the staffing industry for 10 years. I work for Volt Information Sciences‚ Inc. Operating through an international network servicing North and South America‚ Europe‚ and Asia‚ Volt is one of the world’s largest‚ most respected recruitment organizations (Volt‚ 2012). Compared to Volt‚ all of the other staffing companies I previously worked for
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upon the x variable as time. The oscilloscope has the internal device called a sweep oscillator‚ which moves the electron beam across the screen at a constant rate. Therefore‚ the oscillator plots y (voltage) versus x (time). PROCEDURE: Put the 1.5 Volt battery across the y-input. Put the switch on Direct Current. Then measure the number of divisions that the dot jumps. Reverse the polarity of the battery and measure the number of divisions again. Connect an audio oscillator to the vertical input
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REWINDING FOR A CHANGE IN VOLTAGE Three-phase motors can also be rewound for a change in voltage. The only changes necessary are in the number of turns and the size of the wire. EXAMPLE: If a 220-volt motor is to be rewound to operate an 440 volts‚ use twice as many turns on each coil and one-half the circular-mil area of wire. In other words‚ if forty turns of No. 17 wire were used on the original motor‚ eighty turns of No. 20 should be used on the new motor. RECONNECTING THE POLYPHASE MOTOR
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