Introduction: Hypotheses: 1). A) I think that for the series circuit‚ the current from the battery will be equal to the current that passes throught all three resistors. B) I think that for the parallel circuit‚ the current from the battery will be equal to the sum of the current throught the three resistors C) I think that for the complex circuit‚ that has two light bulbs in series with the battery‚ the current from the battery will be equal the sum of the current throught the
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Electricity and Magnetism Electricity Circuit symbols Potential difference The energy which is delivered to an electric circuit comes from the supply. The greater the potential difference of the power supply the more energy is delivered. Potential difference is measured in volts‚ which has the unit symbol V. Cells in series The more chemical cells that are connected in series the greater the potential difference that they supply. The potential difference of a number of cells connected
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Student Number:R001251K Course CR 10066 Research Project DECLARATION I of the following student number declare that this circuit is researched and constructed by me Signature........................................................... INTRODUCTION An electronic muscle stimulator is a circuit designed to stimulate nerves
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+ 2.0 mA _ VS _ R1 + 2.0 mA _ R2 2.0 mA + _ 2.0 mA + © Copyright 2007 Prentice-Hall Electric Circuits Fundamentals - Floyd Chapter 4 Series circuits Summary The total resistance of resistors in series is the sum of the individual resistors. For example‚ the resistors in a series circuit are 680 Ω‚ 1.5 kΩ‚ and 2.2 kΩ. What is the total resistance? R1 VS 12 V 680 Ω R2 1.5 kΩ 4.38 kΩ R3 2.2 kΩ Electric Circuits Fundamentals - Floyd © Copyright 2007 Prentice-Hall
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power supply * Variable resistor (15ohm rheostat) * Connecting wires * Retort stand * Clamp * Two pieces of thick card or balsa wood 10cmx10cm * Two strips of aluminium foil 1cmx30cm * Four drawing pins * Push switch Method: 1. Pin each foil strip between the pieces of card so that they are parallel with the top card and is supported by the clamp and retort stand. 2. Connect the wires to the power packs DC terminals‚ switch variable resistor and strips as shown in diagram
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® CA3140‚ CA3140A Data Sheet February 10‚ 2005 FN957.9 4.5MHz‚ BiMOS Operational Amplifier with MOSFET Input/Bipolar Output The CA3140A and CA3140 are integrated circuit operational amplifiers that combine the advantages of high voltage PMOS transistors with high voltage bipolar transistors on a single monolithic chip. The CA3140A and CA3140 BiMOS operational amplifiers feature gate protected MOSFET (PMOS) transistors in the input circuit to provide very high input impedance‚ very low input
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CHAPTER 1 : INTRODUCTION 1.1 Introduction Recently‚ we often hear cases of theft manhole made of steel. These thefts often occur because the steel is very valuable when sold. One of my neighbors asked if there are tools that can prevent theft drains. From there I got the idea to create an alarm that can prevent theft from stealing the drain cover becoming increasingly. We begin by examining the case drain theft either inside or outside the country. Too many cases that have occurred that resulted
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LEVEL 2 UNITChapter 204 1 Principles of electrical science 11 Level 2 Electrical Installations (Buildings and Structures) This chapter covers: Chapter 1 the principles of electricity the principles of basic electrical circuits the principles of magnetism and electromagnetism the operating principles of a range of electrical equipment the principles of basic mechanics the principles of a.c. theory electrical quantities in Star Delta configurations. LO1 Matter – something that has weight
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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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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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