Magnets & Transportation Throughout the ages‚ evolution has taken place with every aspect of our life‚ including transportation. Historically‚ humans did not have the proper technology to move from place to place easily. However‚ the present has come depending mostly on electronics and technological items such as cars and airplanes for movement. Unfortunately‚ the increase in overpopulation has led to different issues concerning transportation that may cause pollution and insecurity. Humans
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drugs‚ post surgical treatments‚ etc. Their application in tissue engineering is mainly due to certain desirable qualities such as suitable surface morphology‚ mechanical properties‚ ease in processability and tailorability‚ degradability‚ etc. In the field of wound healing the traditional‚ less effective methods are being replaced by the use of biopolymeric scaffolds which are based on naturally occurring hyaluronic acid thus making it highly biocompatible. Similarly in the area of controlled release
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as show in fig . The internal resistance of the battery is negligible . 2 score 7. Define the term current density of a metallic conductor .deduce the relation connecting current density (J)and Conductivity ( )of the conductor ‚when an electric field E‚ is applied to it. 3scores 8. How are the following e.m. radiations produced ‚ mention one used of them.? (1)Microwaves (2) Ultra – violet rays (3) gamma rays 3scores 9. How does an air bubble behaves inside water? 10. State the principle on which
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ELECTROMAGNETIC INDUCTION Electromagnetic induction is the production of an electromotive force across a conductor when it is exposed to a varying magnetic field. It is described mathematically by Faraday’s law of induction‚ named after Michael Faraday who is generally credited with the discovery of induction in 1831. Electromagnetic induction was discovered independently by Michael Faraday and Joseph Henry in 1831; however‚ Faraday was the first to publish the results of his experiments.[4][5] In
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Question 1.1: What is the force between two small charged spheres having charges of 2 × 10−7 C and 3 × 10−7 C placed 30 cm apart in air? Answer Repulsive force of magnitude 6 × 10−3 N Charge on the first sphere‚ q1 = 2 × 10−7 C Charge on the second sphere‚ q2 = 3 × 10−7 C econd Distance between the spheres‚ r = 30 cm = 0.3 m Electrostatic force between the spheres is given by the relation‚ Where‚ ∈0 = Permittivity of free space Hence‚ force between the two small charged spheres is 6 × 10−3 N.
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SISTEMAS DC Motors Catedrático: Ing. Gustavo Mendoza Leal Alumno: Alfredo Valdés Cárdenas Introduction A DC 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
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Fabrication SemiTech Mr. Mark Benjamin Engineer SemiTech Dear Mr. Mark Benjamin This is the report for analyzing and recommends dope silicon for our company. In the report‚ I use the right-hand rule to determine the direction of the magnetic field‚ force acting in charge and the direction of moving charges. After that I use several equations to calculate the carrier concentration‚ hall coefficient‚ of the sample. It is an n-type semi-conductor. The resistance of the sample is 1.756 kΩ. The
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Reflection on field visit This report will outline my field visit at RSL aged care center. I was required to observe the nurses performing their roles‚ communication and safety practice in a professional working environment. While comparing the reality with my expectation‚ I have to reflect on what I felt‚ what had been my experience‚ and what I have to learn more. I am also required to be aware of any unsafe practice that might happen in that field and suggest a solution for it. In my imagination
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If my class received some money for a field trip‚ I would use it to go to Yellowstone. It would be the perfect place for a field trip because we would have oodles of exciting adventures. First of all‚ we would be able to observe many different species of wildlife in their natural habitats. If we were lucky‚ we might discover bears‚ elk‚ buffalos‚ coyotes‚ and maybe even wolves. When I visit the Park‚ I love to find a perch high on a hill and glance across the vast valley at all the animals
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experiment. In this lab we are to experiment with the lines of force and equipotentials. We are also to find out vector field and the relationship between the lines of force and the electric field in this lab. Apparatus: Slightly-conducting paper‚ conducting-ink pen‚ digital multimeter‚ banana cables‚ alligator clips‚ power supply (from buss network)‚ cork board‚ probe‚ pushpins. I. Field Inside Capacitors: Find the equipotential lines in the region between the electrodes in 1.Parallel-plate capacitors-
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