Gauss’ Law 1. Which of the following graphs best represents the electric field along the positive x‑axis? 2. Above a charge on a wire loop created an electric field. Now imagine a wire loop in an electric field. a. Draw a diagram to show the relative orientation of the loop and the electric field so that the number of field lines that pass through the surface of the loop is maximum possible. b. Draw a diagram to show the relative orientation of the loop and the
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University of the Philippines College of Science PHYSICS 72 SET A Second Semester 2010-2011 First Long Examination National Institute of Physics 2nd Sem AY 2010-2011 Physics 72 INSTRUCTIONS: Choose the best answer and shade the corresponding circle on your answer sheet. To change your answer‚ cross-out and sign your original answer and then shade your new answer. No computational devices allowed (e.g. calculators‚ mobile phones). Following instructions is part of the exam. Useful
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toward the –ve charge ii) F net = 1.6128x10-11 N toward +ve charge Question 2 a) Based on Figure 1 above‚ the values for Q1‚ Q2 and Q3 are -86 μC‚ +50 μC and +65 μC respectively. (i) Calculate the net electrostatic force on charge Q3 due to the charges Q1 and Q2 (ii) Determine the direction of the force. Answer: i) Fnet = 1129.51 N‚ ii)
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contact When two objects are rubbed together there is more contact between the surfaces and so more electrons are transferred Electron Affinity: Electron affinity is the tendency of a substance to hold onto electrons. Items high on the list (electrostatic/ triboelectric series) will tend to lose electrons easily (positive) Items low on the list will tend to gain electrons easily‚ or hold on to their electrons example: glass rubbed with plastic wrap glass is above plastic wrap glass will become
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Case Analysis Kaspersky Lab: From Russia with Anti-virus Industry Background: Software Security Cybercrime has become a fast growing concern for the 21st century as businesses‚ institutions and individuals grow into an interconnected web of computer networks. Online business transactions‚ along with the sharing of personal information‚ are vulnerable to a host of disasters that can reap economic and social havoc. Some sources say that today‚ cybercrime costs more than $1.0 trillion to society--Global
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Chapter 26 Problems 1‚ 2‚ 3 = straightforward‚ intermediate‚ challenging Section 26.1 Definition of Capacitance 1. (a) How much charge is on each plate of a 4.00-μF capacitor when it is connected to a 12.0-V battery? (b) If this same capacitor is connected to a 1.50-V battery‚ what charge is stored? 2. Two conductors having net charges of +10.0 μC and –10.0 μC have a potential difference of 10.0 V between them. (a) Determine the capacitance of the system. (b) What is the potential
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Irodov Problem 3.7 As shown in Figure 1‚ the charges are located in at the four corners of the square ABCD whose diagonal is of length 2l. Since the point Xis located at a height of x units from the plane of ABCD along its central axis‚ the distance of X from any of the corners A‚B‚C and D is . The electric field strengths due to each of the four charges located at corners A‚B‚C and D are given by‚ The vertical components of EC and EB will cancel
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elGauss’ Law AP Physics C Electric Flux Let’s start be defining an area on the surface of an object. The magnitude is “A” and the direction is directed perpendicular to the area like a force normal. A E Flux ( or FLOW) is a general term associated with a FIELD that is bound by a certain AREA. So ELECTRIC FLUX is any AREA that has a ELECTRIC FIELD passing through it. We generally define an AREA vector as one that is perpendicular to the surface of the material. Therefore‚ you can
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In physics‚ the charge of a volume is commonly described by a quantity called the charge density or the charge distribution. When the electric field that arises from the charge distribution exhibits a volumetric symmetry‚ a handy relationship known as Gauss’s Law may be used to calculate the charge distribution of the volume. The charge volume of a ball or rod mill is expressed as the percentage of the volume within the liners filled with balls or rods. When the mill is stationary‚ the charge
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Part 1: What is the relationship between the electric potential at a point in space and the distance from an electric charge? 1) Place a positive 1 nano-coulomb charge on the screen. 2) Turn on “Show numbers” 3) Turn on “tape measure”. 4) Use the tape measure to find and record the distance from the charge to the equipotential sensor. 1.88 m 5) Record the voltage as indicated on the equipotential sensor. 4.1v 6) Change the location of the positive charge to
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