Cambridge International Examinations Cambridge Ordinary Level * 8 7 0 6 7 3 2 3 4 6 * 5054/32 PHYSICS Paper 3 Practical Test May/June 2014 2 hours Candidates answer on the Question Paper. Additional Materials: As listed in the Confidential Instructions. READ THESE INSTRUCTIONS FIRST Write your Centre number‚ candidate number and name on all the work you hand in. Write in dark blue or black pen. You may use an HB pencil for any diagrams or graphs. Do not use staples‚ paper
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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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® 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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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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CONTENTS 1) INTRODUCTION 2) CIRCUIT DIAGRAM 3) HOW IT WORKS 4) COMPONENETS DESCRIPTION. A. IC 555 TIMER B. BC 547 TRANSISTOR C. RESISTER D. CAPACITOR E. PRESET F. BUZZER G. PCB 5) SCOPE 1) INTRODUCTION: Generally when we are pumping liquids like water or may be any other liquid is we need a human to see whether the tank is filled or not or we will place a overflow pipe to know that the tank is fill or not
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measure the resistance of the light bulb 4. Connect the power pack to the power point but do not switch it on 5. Set up a series circuit with the ammeter‚ switch‚ nichrome wire resistor (Figure 1)‚ light bulb (Figure 2) connected in a series and connect the voltmeter in parallel with the nichrome wire or light bulb resistor. Use two alligator clips as a switch 6. To begin‚ turn the power source to the lowest setting. Switch on the power and record the reading on the voltmeter and the ammeter 7. Switch
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shift measurements with an oscilloscope. 4. Become more familiar with laboratory instruments and reading instrument operating manuals. Equipment / Materials 1. 0.1 UF Capacitor 2. 1 Kilo ohm Resistor 3. Oscilloscope 4. Generator 5. Breadboard Procedure: 1. Connect a 0.1 μF capacitor and a 1 kΩ resistor to a function generator and an oscilloscope as shown below. 2. Calculate and record the reactance (XC) of the 0.1 μF capacitor when connected to a 100 Hz AC voltage. 3. Calculate and record
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Chapter 4 Series Circuit Practice Problems 1. Each of the following resistor combinations is connected as shown in figure 4.29. For each combination‚ calculate the total circuit resistance. R1 R2 R3 R4 a.1kΩ 220Ω 330Ω 1.1kΩ = 1kΩ+220Ω+330Ω+1.2kΩ=2650 x = 2.65kΩ b. 10Ω 18Ω 47Ω 200Ω= 10Ω+18Ω+47Ω+200Ω= 275Ω c. 150Ω 220Ω 820Ω 51Ω= 150Ω+220Ω+820Ω+51Ω=1241 x = 1.241kΩ d. 10kΩ 91kΩ 5.1kΩ
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Breadboard DC power supply Handheld DMM Test leads Wire 2.2kΩ resistor 3.3kΩ resistor 1. What is the relationship between conductance and resistance? They are the reciprocals of one another. 2. What is the symbol for mhos? ______upside down omega sign (Ω)___ 3. What other unit‚ other than mhos‚ can conductance be measured in? What is its symbol? Siemens‚ S 4. What is the total resistance of a circuit with three parallel resistors with the values below? Gt= G1+G2+G3= 0.5mS+0.25mS+0.75mS=
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Neeru2012-10-23T12:15:00 CLASS 10 ELECTRICITY 1. How much current will an electric heater coil draw from a 220 volt line‚ if the resistance of the heater coil is 40? (1 Mark) (Ans) Given‚ R= 40‚ V=220 V We have the relation‚ I = V/R = 220/40 = 5.5 A 2. What is electric current? (1 Mark) (Ans) The rate of flow of charge per unit time through a conductor is called electric current. 3. What is the SI unit of electric current? (1 Mark) (Ans) The SI unit of electric current is ampere
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