TECHNOLOGY MEASURE ELECTRICAL QUANTITIES Practical #1 – Measure Electrical Resistance Topic – Measure the Resistance using Analogue & Digital Multimeter Objective – Familiarize and learn how to use Multimeter Equipment/Tools * Resistor -10 * Digital Multimeter * Analogue Multimeter * Breadboard Circuit Diagram Block Diagram NO | Components/Colour code | Rated Value | Measured Value | Measured Value |
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insulators. 2. Units 3. 4. Formula Graphs 5. Resistivity 6. Change in resistance If a wire is folded(doubled on it) and made half its length‚ then the resistance does not become half. 7. Resistors in series Is the current or the voltage same in resistors in series. How to avoid The direction of current is opposite to the direction of movement of electrons. In a circuit current always flows from positive to negative terminal and you need to put arrows in this direction
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module 2. To determine maximum power transfer and the optimized load to obtain maximum power transfer from the solar cell to the load Components: 1. PV module 2. 2 units of Multimeters (mA Ammeter‚ Voltmeter) 3. Variable resistors (50 (‚ 100 (‚ 1 k(‚ 5 k() 4. Retort stand 5. Xenon Lamp (Solar simulator) 6. DC power supply 7. Wires
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Alternating current bridges….it’s applications and various perspectives revealed….. ALTERNATING CURRENT BRIDGES:- INTRODUCTION:- A bridge circuit is a type of electrical circuit in which two circuit branches (usually in parallel with each other) are "bridged" by a third branch connected between the first two branches at some intermediate point along them. The bridge was originally developed for laboratory measurement purposes and one of the intermediate bridging points is often adjustable when
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bulb(converts electrical energy to radiant energy)‚ a battery(possible power source)‚ a switch(used to connect and disconnect the circuit)‚ a buzzer(converts electrical energy to mechanical energy)‚ a motor(converts electrical energy to mechanical energy)‚ a resistor(slow down electron movement)‚ a voltmeter(measures the voltage) and an ammeter(measures the current in unit amperes). 2. Compare and contrast a series and parallel circuit. Give at least one way that they are alike and one way that they are different
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difference of rotation speed makes it possible to make turns. Working Principle: This Robot follows the black line which is drawn over the white surface or it follows the white line which is drawn over the black surface. The LDR’S (Light Dependent Resistors) are used to sense the line. When the light from the LED’S fall on the white surface‚ it gets reflected and if it falls on the black surface‚ it is not reflected this principle is used to scan the Lines for the Robot. Basically the Line following
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changes the current and how this can be achieved using a variable resistor 11. 2.8 Use the equation: potential difference (volt‚ V) 5 current (ampere‚ A) 3 resistance (ohm‚ ) V 5 I 3 R 12. Demonstrate an understanding of how current varies with potential difference for the following devices: a filament lamps b diodes c fixed resistors 13. Demonstrate an understanding of how the resistance of a lightdependent resistor (LDR) changes with light intensity 14. Demonstrate an understanding
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| Electronic symbol | (International) (US) | A potentiometer ( /pɵˌtɛnʃiˈɒmɨtər/)‚ informally‚ a pot‚ in electronics technology is a component‚ a three-terminal resistor with a sliding contact that forms an adjustable voltage divider.[1] If only two terminals are used‚ one end and the wiper‚ it acts as a variable resistor or rheostat. A potentiometer measuring instrument is essentially a voltage divider used for measuring electric potential (voltage); the component is an implementation of
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PROJECT IN T.L.E Electronic Components Diodes a diode is a two-terminal electronic component with asymmetric conductance‚ it has low (ideally zero) resistance to current flow in one direction‚ and high (ideally infinite) resistance in the other. A semiconductor diode‚ the most common type today‚ is a crystalline piece of semiconductor material with a p–n junction connected to two electrical terminals. A vacuum tube diode has two electrodes‚ a plate (anode)
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Republic of the Philippines DEPARTMENT OF EDUCATION K to 12 Basic Education Curriculum Technology and Livelihood Education Learning Module CONSUMER ELECTRONICS SERVICING EXPLORATORY COURSE Grade 7 and Grade 8 TABLE OF CONTENTS What Is This Module About ? ................................................................................... 2 How Do You Use This Module ………………………………………………3 LESSON 1 – Use Hand Tools ...................................................................
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