hi 1. Which of these is not correct as a basic property of electric charges? (a) Total charges in an insulated system is invariable (b) A charged body is electrically unstable (c) * A charged body has equal number of positive and negative charges (d) Positively charged body is deficient of electrons x+q1+q2 = 2 q1 2.Calculate the distance x between charges q1 and q2 shown‚ given the repulsive force between them as 1.2 x 10-4 N‚ take the permittivity of vacuum
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Opportunity cost The true cost of something is what you give up to get it.(This includes not only the money spent in buying (or doing) the something‚ but also the economic benefits (UTILITY) that you did without because you bought (or did) that particular something and thus can no longer buy (or do) something else.) Factors of production The ingredients of economic activity: land‚ labor‚ capital and enterprise. Economic Development The scope of economic development includes the process and
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Grade Details There are 2 pages in this exam: Page: 1 2 1. Question: (TCO 4) A body moving with an acceleration having a constant non-zero magnitude must experience a change in: Your Answer: Speed acceleration velocity CORRECT weight Instructor Explanation: Remediation: Knight‚ Chapter 1.6 Points Received: 6 of 6 2. Question: (TCO 4) A ball is dropped from a 250 foot building. How long before the ball hits the ground
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Explain what it means when we say a substance is magnetic. A substance can be picked up by a magnet. Discuss the relationship between electric and magnetic fields. The magnetic field will be perpendicular to the electric field and vice versa Before you begin your lab‚ you need to form a hypothesis that reflects which material‚ voltage‚ and number of winds you think will produce the strongest electromagnet. Record your hypothesis as an if then statement. If I use copper‚ 100 volts‚ large thickness
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Young/Freedman Course Home Assignments Roster Gradebook Item Library Instructor Resources eText Study Area H9 Chapter 28: Sources of Magnetic field‚ Ampere’s law‚ Magnetic materials Overview Summary View Diagnostics View Print View with Answers [ Edit ] H9 Chapter 28: Sources of Magnetic field‚ Ampere’s law‚ Magnetic materials Due: 11:59pm on Monday‚ November 12‚ 2012 Note: You will receive no credit for late submissions. To learn more‚ read your instructor’s Grading
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Magnetic Field Strength Determination on a Solenoid and Magnetic Field Mapping on Bar Magnets Sims‚ Jon Xyrus College of Engineering‚ University of the Philippines‚ Diliman‚ Quezon City Abstract Magnetic fields are important in a vast array of applications‚ as well as its natural occurrence in many different phenomena. This experiment aims to determine the dependence of its strength on both a changing current‚ and for a solenoid‚ changing number of turns and determine through linear regression
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Ampere’s Law The line integral of the magnetic flux around a closed curve is proportional to the algebraic sum of electric currents flowing through that closed curve; or‚ in differential form curl B = J. This was later modified to add a second term when it was incorporated into Maxwell’s equations. Archimedes’ Principle A body that is submerged in a fluid is buoyed up by a force equal in magnitude to the weight of the fluid that is displaced‚ and directed upward along a line through the center
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27 Magnetic Field and Magnetic Forces J. Manuel Physics 72 1st Sem AY13-14 1 27 Fundamental nature of Magnetism Magnetism Magnetic Field Magnetic Field Lines and Magnetic Flux Motion of Charged Particles in Magnetic Field Magnetic Force on a Current-Carrying Conductor Force and Torque on a Current Loop Interaction of moving electric charges Magnetic forces arise in two stages: 1. Moving charge or a collection of moving charges produces a magnetic field. 2. Current or moving
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looking out for highly energetic gamma rays‚ as some has been found recently. The astronomers do know‚ however‚ that these gamma rays did not come from the same origin as the cosmic waves‚ as the gamma rays did not deflect off of the Milky Way’s magnetic field. Though they haven’t found the origin of these rays yet‚ astronomers are on the right path to get there. If it takes months‚ or years‚ they won’t rest until answers are given‚ thus expanding our small intergalactic knowledge. This article was
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Lab #11 Faraday’s Law of induction Purpose: To prove Faraday’s Law of Induction using an oscillating wand which swings through a magnetic field. In addition‚ we studied the conversion of mechanical energy to electrical energy. Questions: 1. What are the possible errors in this experiment? There are a variety of sources of error which may have affected the results of this experiment. There could have been an error in the setup of the Rotary Motion setup or its setup within the Logger Pro program
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