Hardware Tools A. Electrostatic Discharge(ESD) 1. Antistatic Wrist Strap-An antistatic wrist strap‚ ESD wrist strap‚ or ground bracelet is an antistatic device used to safely ground a person working on very sensitive electronic equipment‚ to prevent the buildup ofstatic electricity on their body‚ which can result in electrostatic discharge (ESD). It is used in the electronics industry by workers working on electronic devices which can be damaged by ESD‚ and also sometimes by people working around
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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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Electric Field and the Movement of Charge Perhaps one of the most useful yet taken-for-granted accomplishments of the recent centuries is the development of electric circuits. The flow of charge through wires allows us to cook our food‚ light our homes‚ air-condition our work and living space‚ entertain us with movies and music and even allows us to drive to work or school safely. In this unit of The Physics Classroom‚ we will explore the reasons for why charge flows through wires of electric circuits
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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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Capacitors and electrostatics PHY 114 Abstract: The purpose of this experiment was to measure the electrostatic force between two objects as a function of their signs and electrical charges. This was done using many equipment’s such as a glass and rubber rod. In addition‚ investigate how capacitors store energy electrostatically in an electric field‚ share charges and discharge. This was done by using equipment’s like voltage follower‚ DVM‚ powered breadboard unit and a selection of capacitors
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Electrostatic Lab What materials will you use? I will use the virtual lab and elements provided by the class What would you measure? I will measure the static electricity with a neutrally charged balloon What results do you expect? I expect that the balloons charges and sticks to the wall. What is the result are different? That would mean that there is a different way to charge the balloons than negative charge as using your hair. EXPERIMENT Bring together the balloons but not touching
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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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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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