Department of Applied Physics Electricity and Magnetism Assignment # 2 Due Date: 15 November 2013 1. a) Write brief notes on the Hall effect. Show on a diagram the polarity of the Hall Voltage‚ together with a given current and magnetic field direction‚ assuming the charge carriers to be conduction electrons. [5] b) Define electric dipole and the electric dipole moment. Write down an expression‚ in vector form‚ and show graphically the electric field intensity at point P on
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PHYSICS IGCSE 2012 EXAM REVISION NOTES By Samuel Lees and Adrian Guillot 1. General physics 1.1 length and time 1.2 Speed‚ velocity and acceleration 1.3 Mass and weight 1.4 Density 1.5 Forces a. Effects of forces b. Turning effect c. Conditions for equilibrium d. Centre of mass e. Scalars and vectors 1.6 Energy work power a. Energy b. Energy resources c. Work d. Power 1.7 Pressure 2. Thermal physics 2.1 a. States of matter b. Molecular model c. Evaporation d. Pressure changes 2.2 Thermal properties
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The first type of roller coaster is the wooden roller coaster. The wooden roller coaster braced by wooden cross ties and diagonal support beams. The entire track rest on wooden or steel beams. Some wooden roller coasters can even go upside down but not a lot of modern roller coasters do this anymore. They don’t do this any more because the wooden track is inflexible. This is also why wooden roller coasters don’t have complex twist or turns. The main motion of a wooden roller coaster is from going
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Current is a flow of electrical charge carriers‚ usually electrons or electron-deficient atoms. The common symbol for current is the uppercase letter I. The standard unit is the ampere‚ symbolized by A. One ampere of current represents one coulomb of electrical charge (6.24 x 1018 charge carriers) moving past a specific point in one second. Physicists consider current to flow from relatively positive points to relatively negative points; this is called conventional current or Franklin current. Electrons
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Why is magnetic flux through closed surface zero while electric flux not? Gauss’ Law for Magnetism The net magnetic flux out of any closed surface is zero. This amounts to a statement about the sources of magnetic field. For a magnetic dipole‚ any closed surface the magnetic flux directed inward toward the south pole will equal the flux outward from the north pole. The net flux will always be zero for dipole sources. If there were a magnetic monopole source‚ this would give a non-zero area integral
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Electrotechnology Lab Report Aim: To investigate and analyse single-phase transformers in a circuit Objectives: To determine the approximate equivalent circuit of a single-phase transformer so the transformer can be modelled‚ predicted and analysed. Equipment: TecQuipment electrical machines teaching unit NE8010 or NE8013 B-phase transformer (EMTU-TT01) One Hameg HM-8115-2 Power meter Wires Introduction and theory of Transformers: Transformers are simple‚ energy transfer
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Electrical technology – assignment 4 Properties of electrical materials and Effective use of technology P.5. Describe the properties and a typical application of a solid and a liquid or gas electrical conductor. A conductor is a material that allows free movement of electrons and therefore allows easy flow of electricity. Most conductors are metals. A common metal used as a conductor in electrical technology is aluminium. It is used quite a lot as it cheap‚ lightweight and in abundance compared
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POWER PLANT A power plant is an industrial facility that generates electricity. The source of the energy may vary‚ and includes nuclear‚ geothermal‚ diesel‚ among others. This energy is used to run the generators to provide more energy.A power plant is a building or station that is built to provide the production of power. It usually powers its local surrounding cities or towns. TRANSMITION LINE A transmission line is a material medium or structure that forms a path for
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4.7 Review 1. In Alberta the north end of a compass needle points to (approximately) the geographic a. north b. south c. east d. west 2. An negatively charged droplet travels at a speed of 2.0 x 103 m/s. The field(s) that acts on this droplet is/are a. electrical only b. electrical and magnetic only c. magnetic and gravitational only d. electrical‚ magnetic‚ and gravitational 3. A charged particle experience a magnetic force only when it a. moves in the same direction
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Introduction: Now-a-days electricity has become quite-common in the world. Everybody sees the wonderful work of electricity. The lights on the streets are lit by the electric current. Electric fans work in the court‚ high court and office-rooms. Trains and trams are run by the electric power. So‚ electricity is no longer a strange thing. Discovery of electricity: About six hundred years back the people of Asia Minor and Greece had a very crude idea of electricity. Next‚ the American Scientist
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