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General Physics Electricity and Magnetism

by: Otha Leffler

General Physics Electricity and Magnetism PHYS 212

Marketplace > Pennsylvania State University > Physics 2 > PHYS 212 > General Physics Electricity and Magnetism
Otha Leffler
Penn State
GPA 3.89


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Class Notes
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This 0 page Class Notes was uploaded by Otha Leffler on Sunday November 1, 2015. The Class Notes belongs to PHYS 212 at Pennsylvania State University taught by Staff in Fall. Since its upload, it has received 18 views. For similar materials see /class/233094/phys-212-pennsylvania-state-university in Physics 2 at Pennsylvania State University.

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Date Created: 11/01/15
PHYS 212 Recitation Review Problems A skill critical for success on the nal exam is being able to see a new problem identify the concepts involved and the equations that relate to those concepts 7 and do this on your own Without help from the textbook friends the Internet or the TAinstructor In recitation and lab this week you will be practicing this skill tacking new problems They relate to material covered on the exam and are of the level of dif culty of an exam problem You should try to solve these on your own and only then discuss in your groups 1 A charge of 300 nC and a charge of580 nC are separated by a distance of 500 cm Find the position at which a third charge of 750 nC can be placed so that the net electrostatic force on it is zero 2 Two positive point charges are 50cm apart If the electric potential energy is 72p what is the magnitude of the force between the two charges 3 A certain parallelplate capacitor is lled with a dielectric for which K 55 The area of each plate is 0034 ml and the plates are separated by 20 mm The capacitor will fail short out and burn up if the electric eld between the plates exceeds 200 kNC What is the maximum energy that can be stored in the capacitor 4 Two conductors are made of the same material and have the same length Conductor A is a solid wire of diameter 10 mm ConductorB is a hollow tube of outside diameter 20 mm and inside diameter 10 mm What is the resistance ratio RARB measured between their ends 5 What are the emf and the internal resistance of the battery in the gure Open 16A Closed 1 5A 109 6 The charge on a parallel plate capacitor with areaA varies according to qqg1 equotT with the charge distributed uniformly over the plates What is the induced magnetic eld at a position close to the center of the capacitor as a function of the time t position r nal charge qg time constant I and areaA Hint What is the time dependence of the electric field in the capacitor q 39q 7 A rectangular loop contains two regions separated by the dashed line Both regions have uniform 0nt0fthepage magnetic fields a In Region I the magnetic field is 31 and increasing at a rate of a Region II the magnetic field is B and decreasing at a rate of b Assuming that a gtb determine the induced emf and the direction of the current through the rectangular loop Also find the value for which the induced emf is zero Express your results only in terms of x L h a and b b Now suppose that 31 and B remain constant while x increases at a rate of v Determine the induced emf Express your answer only in terms of x L v h 31 and BI Region 1 Region II A lt L X


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