Activity 1.1.2 Investigating Basic Circuits (DLB) Introduction What is an electrical circuit? How can you manipulate components and design a circuit that will do what you want it to? This guided activity will introduce you to some components‚ tools‚ and concepts that are fundamental in electronics. It will allow you to investigate and discover: What are voltage‚ current‚ and resistance? How are they related to one another? What are some of the basic components that make up simple circuits and what
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digital multimeter (DMM). This meter can measure three basic electrical properties voltage‚ current and resistance. 2. What is the function of the COM connection? What color lead is placed in this connection? It’s the common ground and is used in all measurements. Black lead is placed in this connection. 3. What is the function of the “VWmA” connection? What color lead is placed in this connection? It’s used to measure voltage and resistance. Red lead is places in this connection. 4. Pick five resistors
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FII-ELECTRICAL‚ELECTRONIC AND CONTROL ENGINEERING 01FII-C2A-S04 1. An electrical component is connected across a 120 volt‚60Hz‚AC supply.What is the current drawn by the component if the impedance is 200 ohms? Ans: 0.060 Amperes 2. A lamp has a source voltage of 110 volts and a current of 0.9 amps. What is the resistance of the lamp? Ans: 122.22 Ohms 3. What power would be consumed in each of the branch resistors of the circuit
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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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www.gretousvisa.com STATEMENT OF PURPOSE Communications is an industry that has changed the definition of human interaction. A couple of centuries ago‚ sending a message from USA to India would take months. Now it takes hardly a second. The process of interacting with people over wires or through air thrills me and hence I decided to excel in the field of Communications by pursuing Master’s degree from xyz University. I took up Electronics and Telecommunications as my major for an engineering Bachelor’s
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Chapter 3: Current and Resistance Quick Quizzes - QUESTIONS 1. Consider positive and negative charges moving horizontally through the four regions in Figure 17.2. Rank the magnitudes of the currents in these four regions from lowest to highest. (Ia is the current in Figure 17.2a‚ Ib the current in Figure 17.2b‚ etc.) (a) Id ‚ Ia ‚ Ic ‚ Ib (b) Ia ‚ Ic ‚ Ib ‚ Id (c) Ic ‚ Ia ‚ Id ‚ Ib (d) Id ‚ Ib ‚ Ic ‚ Ia (e) Ia ‚ Ib ‚ Ic ‚ Id (f) none of these [pic] Figure 17.2 2. Suppose a current-carrying
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the proton. The intrinsic angular momentum (spin) of the electron is a half-integer value in units of ħ‚ which means that it is a fermion. The antiparticle of the electron is called the positron; it is identical to the electron except that it carries electrical and other charges of the opposite sign. When an electron collides with a positron‚ both particles may be totally annihilated‚ producing gamma ray photons. The concept of an indivisible quantity of electric charge was theorized to explain the chemical
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stop‚ one would need to collide with something. In short‚ one would need some mechanism like rockets have to control motion. A larger problem would be that the threat of meteorites would be multiplied immensely (Goulding). Since there would be no resistance as the meteorite entered Earths atmosphere‚ even small meteorites would be able to penetrate our atmosphere and cause immense damage (Goulding). The damage a large meteor would cause would be catastrophic. Several ramifications that probably dont
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is derived and how it is used to solve problems in series and parallel connection and the resistance of a material. Ohm’s Law shows the relationship between the voltage (V)‚ current (I) and resistance (R). It can be written in three ways: V = I × R or I =V/R or R = V/I The resistance (R) of a material depends on Its length‚ cross-sectional area‚ The resistivity‚ and Resistance also depends on temperature‚ usually increasing as the temperature increases. For reasonably
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Due date: March‚ 13 20144 Group Names: Hisham Sageer Objectives: Our object is to confirm Ohm’s law by analyzing the dependence of the electrical current as a function of voltage and as a function of resistance. Also‚ we studied the current flow and voltage in series and parallel. Finally‚ the lab determined the equivalence resistance of series and parallel combination of resistors and compared the results with theoretical data. Theoretical Background: The first thing that needs
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