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    Sllaybus of Class 12 Physics

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    5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. To demonstrate the effect of angle of launch on range of a projectile. To demonstrate that the moment of inertia of a rod changes with the change of position of a pair of equal weights attached to the rod. To study variation of volume of a gas with its pressure at constant temperature using a doctors’ syringe. To demonstrate Bernoulli’s theorem with simple illustrations To demonstrate that heat capacities of equal masses of different materials are different

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    FM Modulator and Demodulator Nor Ayu Hidayah Binti Mohd Safri (31743) Department of Electronic Engineering (Computer) Universiti Malaysia Sarawak‚ Malaysia Kuching‚ Sarawak‚ Malaysia Email : nor_ayu92@yahoo.com Abstract This paper presents about FM modulator and Abstractdemodulator.In electronic and telecommunication‚ modulation process of varying one or more properties of a high frequency periodic waveform ‚ called carrier signal with a modulating signal which typically contain information to

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    optical-communications [14]. The erbium absorption line that best matches with available high power pump diodes is in the 980 regime. At this wave-length‚ the absorption cross section of erbium is so low that an excessive amount of fiber would be required for efficient pump absorption‚ and due to reabsorption inherent in a three level laser system‚ the overall laser efficiency would suffer due to the long fiber. Higher power diodes at 1480 are being developed for directly pumping erbium lasers in double

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    Rfid Based Attendance System

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    HBeonLabs Off. No. 46‚ 1st Floor‚ Kadamba Complex Gamma-I‚ Greater Noida (India) - 201308 Contact us: +91-120-4298000 +91-9212314779 info@hbeonlabs.com training@hbeonlabs.com www. hbeonlabs.com RFID BASED ATTENDANCE CUM SECURITY SYSTEM INTRODUCTION Our final year project is RFID based Attendance cum Security System. This idea came to my mind when I saw our lecturers taking the attendance of 100s of students very hardly. We thought we can integrate the RFID based Security System with

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    1 CHAPTER INTRODUCTION 1. INTRODUCTION Nowadays‚ the communication becomes very simple‚ fast ‚interactive and more compact‚ that makes the global as a small village. So it is very easy of anyone to subscribe in the local or global telecommunication network with individual mobile phone device. Mobile devices such as mobile phones‚ are becoming multipurpose devices. These devices are capable of storing data as well as running custom application. As more people adopt these devices

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    8051 programmer

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    British Journal of Science 1 September 2011‚ Vol. 1 (2) © 2011 British Journals ISSN 2047-3745 Development of a GSM Based Household Power Management System Ganiyu R. A.‚ Arulogun O. T.‚ Adetunji A. B. and Okediran O. O. Department of Computer Science and Engineering‚ Ladoke Akintola University of Technology‚ P.M.B 4000‚ Ogbomoso‚ Nigeria. ABSTRACT Household power management system provides a means of controlling home appliances remotely using mobile phone. In this paper‚ we mainly focus on

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    Potato Battery

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    design‚ experiments and characterization plots reveal approximately 100% improvement over other existing designs in the power range of 20 to 7 dBm. Index Terms—Optimization‚ power efficiency‚ radio-frequency (RF) energy harvesting circuit‚ Schottky diode‚ sensor‚ voltage multiplier‚ 915 MHz. I. INTRODUCTION W ITH the growing popularity and applications of largescale‚ sensor-based wireless networks (e.g.‚ structural health monitoring‚

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    Vienna Rectifier

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    constructed using Zener diodes to maintain the SOC between desired levels. The MOSFET inverter is built using an H-bridge with opposite switches sharing the same gate. The advantages of such inverters are that the circuit dissipates power only during switching event. And its voltage transfer curve follows a sharp transition. III. SIMULATION RESULTS Traditionally small scale Wind Energy Conversion Systems (WECS) uses a simple diode bridge rectifier to convert the given AC to DC. A diode bridge rectifier

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    Halt

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    Please click on paper title to view Visual Supplement. ISSCC 2009 / SESSION 20 / SENSORS AND MEMS / 20.6 20.6 A Compact CMOS MEMS Microphone with 66dB SNR MOS model). The optimal M1‚2 width (W) is determined for several M1‚2 lengths (L) and bias current Ibias‚ and the overall optimal set of values is W=600µm‚ L=3µm‚ Ibias=53µA. Noise measurements show that 1/f noise has a slightly higher impact than does white noise‚ when both contributions are A-weighted. The expected SNR degradation introduced

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    Introduction Aim of the project Block diagram Components used Rectifier diodes Transistor 78XX regulator IC NE 555 Timer IC Resistor Capacitor Relay Circuit diagram Circuit operation Applications Advantages Disadvantages Limitation Future scope Conclusion Bibliography Introduction: We have seen many more times that our street light were turned On even inday time also. This shows that we are wasting much power even it may be saved and supplied for any crop fields for several hours. Here

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