9.2 Space Students learn to: Students: 1. The Earth has a gravitational field that exerts a force on objects both on it and around it define weight as the force on an object due to a gravitational field perform an investigation and gather information to determine a value for acceleration due to gravity using pendulum motion or computer-assisted technology and identify reason for possible variations from the value 9.8 ms-2 gather secondary information to predict the value of acceleration
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SAMPLE PROBLEMS: 112- Topic 1: ELECTRIC FORCES & ELECTRIC FIELDS. 1) Charges of - 6 and + 4 nC are 3 m apart. Determine the force they exert on each other‚ and the electric field at a point midway between them. |Solution: This is an electrostatics problem (stationary charges). Since the charges|[pic] | |are of opposite sign‚ they will attract each other. The forces are indicated in the|
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motor is a type of electrical machine that converts direct current into mechanical power by means of a magnetic field. DC motors are widely used in field applications because of their many advantages over AC motors such as speed control‚ high starting torque‚ quick starting‚ stopping‚ reverse and acceleration and free from harmonics found in AC. Applications of DC motors include but are not limited to: Transportation such as electrical locomotives‚ rapid transit systems and trolley cars Cranes‚ hoists and
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3 Failure Mechanism of Semiconductor Devices Contents 3.1 Reliability Factor and Failure Mechanism of Semiconductor Devices 3- 1 3.1.1 Reliability factors 3- 1 3.1.2 Failure factors and mechanisms of semiconductor devices 3- 4 3.2 Failure Mechanisms of Semiconductor Devices 3- 6 3.2.1 Time dependent dielectric breakdown (TDDB) 3- 6 3.2.2 Slow trap (NBTI) 3- 8 3.2.3 Hot carrier (AHC) 3-10 3.2.4 Soft error 3-12 3.2.5
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References: 1. 2. 3. 4. 5. 6. 7. History of Wireless – T.Sarkar‚ R.Mailloux‚ A.Oliner‚ M.Salazar-Palma‚ D.Sengupta Microstrip Filters for RF-Microwave Applications – Jia-Sheng Hong Essentials of RF and Microwave Grounding – E.Holzman Networks and Devices using Planar Transmission Lines – Franco Di Paolo Passive RF and Microwave Integrated Circuits – L.G.Maloratsky Microwave Engineering – D. Pozar Practical
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CYLINDRICAL CASE which encloses and protects the Coil Winding Assembly. [pic]A rod shaped MAGNETIC CORE which is free to move axially within the Coil Winding Assembly. [pic]A separate shield is used for ELECTROMAGNETIC SHIELDING. Applications Automotive Applications Industrial Gauging Machine Tools Military and Commercial Aircraft Materials Testing Equipment and much more …. Principle of Operation When an AC excitation signal is applied to the Primary Coil (P)‚ voltages are induced in
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Electric Fields Inside of Charged Conductors Charged conductors that have reached electrostatic equilibrium share a variety of unusual characteristics. One characteristic of a conductor at electrostatic equilibrium is that the electric field anywhere beneath the surface of a charged conductor is zero. If an electric field did exist beneath the surface of a conductor (and inside of it)‚ then the electric field would exert a force on all electrons that were present there. This net force would begin
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Global Mobile Enterprise Application Development Platform Market 2014-2018 A mobile enterprise application development platform is a software-based application that enables enterprises to build‚ test‚ and deploy mobile apps for devices such as smartphones and tablets rapidly. It gives significant advantages to enterprises because it helps increase the speed of mobile enterprise applications‚ enables data connectivity through mobile middleware‚ and offers management and reporting capabilities.
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magnetostrictive materials is analogous to that of the piezoelectric ceramic materials‚ except that they are responsive to magnetic fields. Electrorheological and magnetorheological fluids are liquids that experience dramatic changes in viscosity upon the application of electric and magnetic fields‚ respectively. The combined system of sensor‚ actuator and control circuit on as one IC unit‚ emulates a biological system. Brain Muscles Actuators & motors Control & computation Sensors Nerves
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ADVANCED COMMUNICATION REDTACTON Abstract RedTacton is a human area network technology that uses the surface of the human body as a safe high-speed network transmission path. We may have imagined the future as a place crawling with antennas and emitters‚ due to the huge growth of wireless communications and it gives an idea of using our body as a data transmission. Thus NTT labs‚ the Japanese telecom group had developed a revolutionary technology called “Red Tacton”. The technology is called
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