diagram) of a resistor powered by a battery that can be turned off and on, it might look like Illustration 1. ◦ Note that the placement of the switch (SW1) near the positive terminal (what we would consider the end of the electron flow path) does not matter. A switch anywhere in the circuit will have the same effect of stopping current flow. ◦ Switches are shown in the open (off) position so they are easier to spot in the diagram. In a closed (on) position, the current would be able to flow through the
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any intermediate stage. It is powered by a 6V battery for portable use. The circuit is economic in power consumption. Pin 4, 6 and 8 is connected to the positive supply and pin 1 is grounded. To detect the present of an object we have used LDR and a source of light. LDR is a special type of resistance whose value depends on the brightness of the light which is falling on it. It has resistance of about 1 mega ohm when in total darkness, but a resistance of only about 5k ohms when brightness illuminated
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Electricity Test Study Sheet NAME: _____________________________________________________ 1. Explain the Law of Electric Charges (pg. 462) ________________________________________ ________________________________________________________________________________ 2. What happens when a charged object is brought near a neutral object? (Explain what happens to the electrons within the object). ________________________________________________________________________________
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OHM'S LAW EQUIPMENT: • • • • • • Ammeter (0-0.5 A) Voltmeter (0-10 V dc) Decade resistance box (0.1 to 100 Ω) Rheostat (200 Ω) Unknown resistance Battery (6 V) THEORY: The basic idea of an electrical CIRCUIT is that the power supply "pushes" electrical charges around the circuit similar to the way a pump pushes water in a fountain. The resulting flow of charges is called the CURRENT (I ≡ Δq/Δt). The power supply supplies potential energy to each of the charges that flow through it. We can measure
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Final Investigatory Project for Group 5 I. Problems and Setting A. Introduction Batteries, years ago, have taken the world by a storm and have since than became a necessity in one’s household. Sadly, even though they are tremendously useful, batteries have drawbacks, such as semi- affordable costs, limited shelf life and pollution. Our group had an idea on how to make an alternative to this that would not only work like the real thing but would also be healthy to our environment and light
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Final Investigatory Project for Group 5 I. Problems and Setting A. Introduction Batteries, years ago, have taken the world by a storm and have since than became a necessity in one’s household. Sadly, even though they are tremendously useful, batteries have drawbacks, such as semi- affordable costs, limited shelf life and pollution. Our group had an idea on how to make an alternative to this that would not only work like the real thing but would also be healthy to our environment
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PROJECT REPORT ON SANGUINOSCOPE Under the guidance of: Submitted by: Miss. Navdeep Kaur Harmanpreet Kaur (2009ECA1157) Bhawna Sharma (2011ECA1464) Anuradha
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Simulation of a Stirling Engine Solar Power Generation System Using Simulink Mehdi Zareian Jahromi∗ , Mohammad Mehdi Hosseini Bioki† , and Roohollah Fadaeinedjad‡ , Member IEEE ∗† Electrical ‡ Electrical and Computer Engineering Department, Kerman Graduate University of Technology, Kerman,Iran. and Computer Engineering Department, Kerman Graduate University of Technology, Kerman,Iran. Telephone: +98-3426226517, Fax: +98-3426226618, Email: rfadaein@ieee.org ‡ International Center for Science
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with the help of 1-mega-ohm pot meter VR1. The AF output from IC1 is coupled to the base of transistor BD139 (T2), which, in turn, modulates the laser beam. The transmitter uses 9V power supply. However, the 3-volt laser torch (after removal of its battery) can be directly connected to the circuit—with the body of the torch connected to the emitter of BD139 and the spring-loaded lead protruding from inside the torch to circuit ground. The receiver circuit uses an npn phototransistor as the light sensor
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Electromagnetic Induction Michael Faraday formulated that electromotive force (EMF) produced around a closed path is proportional to the rate of change of the magnetic flux through any surface bounded by that path. In practice, this means that an electric current will be induced in any closed circuit when the magnetic flux through a surface bounded by the conductor changes. This applies whether the field itself changes in strength or the conductor is moved through it. In mathematical form, Faraday's law states
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