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CHAPTER ONE
INTRODUCTION
PREAMBLE
These days’ people normally have to address large gathering at a time and an efficient means of communication has to be used, if not, the massage would not be understood. This fact led us into this project which was explained fully in due course. The project is
DEFINITION OF TERMS
AMPLIDIER
The basic principle in the operation of an audio amplifier involves the increase of a low signal to a very high spinal so that it is head by human ear. The increase of a low spinal involves the use of transistor. The transistor is an active device in amplification, and plays a very big roll in the design and contraction, of the amplifier. The success in the use of transistor depends on how well the transistors are based. The method of biasing transistors are discussed as we progress in this write up.
SPEAKER (EXTERNAL LOUDSPEAKER)
A speaker can be defined as a transducer used to convert electrical signals into a non- electrical signal I .e (sound). It is, mage up of a permanent magnet and diagram which vibrate the sounding air in accordance with the electrical signals passed through it. It is the cast stage in the functioning of the system, where the amplified signal is heard by the listener. A times speaker is said to be an electro-acoustic frequency signal to corresponding sound signals. It converts the varying amplitude dc into sound wave.
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SIMILAR ELECTRICAL ENGINEERING FINAL YEAR PROJECT RESEARCH TOPICS
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1. CONSTRUCTION AND DESIGN OF DISTANCE PROXIMITY SENSOR USING LDR AND LED
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2. DESIGN AND CONSTRUCTION OF AUTOMATIC CHANGEOVER SWITCH WITH INDICATOR
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3. DESIGN AND CONSTRUCTION OF GSM BASED INTRUDER LOOP DETECTOR SYSTEM
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4. PATIENT HEARTBEAT AND TEMPERATURE MONITOR USING RF
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5. DESIGN AND CONSTRUCTION A LASER BASED INTRUDER ALARM SYSTEM
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6. A STUDY OF WIND POWERED TURBINE GENERATION
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7. CONSTRUCTION AND DESIGN OF BATTERY LEVEL INDICATOR CIRCUIT
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8. DESIGN AND IMPLEMETATION OF ARDUINO BASED DIGITAL CLOCK WITH ALARM
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9. REMOTE PATIENT MONITORING SYSTEM
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10. TO HARNESS THE ABUNDANT AND FREE SOLAR ENERGY DURING THE DAY TIME AND CONVERT IT TO ELECTRICAL ENERGY THAT WILL BE USED TO POWER SOME COMPONENTS OF AN...
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