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Electromagnetic Field - Electromagnetism and Optics - Exam, Exams of Electromagnetism and Electromagnetic Fields Theory

Central University of South BiharElectromagnetism and Electromagnetic Fields Theory

These are the Notes of Exam of Electromagnetism and Optics which includes Wedge Shaped Conductor, Static Line Charge Density, Rest Frame of Particle, Constant Charge Density etc. Key important points are: Electromagnetic Field, Lorentz Gange, Spherical Capacitor, Inner Conducting Sphere, Linear Dielectric Permitivity, Capacitor Charge, Maxwell Stress Tensor

Typology: Exams

2012/2013

Uploaded on 02/11/2013

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Physics 110A Midterm 2
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  • Physics 110A Midterm
Physics 110A Midterm 2 1. In the region x? + y2 < a? and 0 b). Take he potential of the outer sphere as V and the inner sphere as 0. a) Find the charge Q on each of the spheres given the voltage V. b) In terms of the capacitor charge Q, give the bound surface charge at r=b 3. A transmission line is constructed using strips of copper foil to construct a very long parallel plate capacitor. The length is L, the width is W and the plate separation is h. (L >>> W >>>h) A battery is connected to one end and a resistor is connected to the other end. This gives a surface current density k in the upper plate toward the resistor and returning to the battery in the lower plate. The potential difference produces a surface charge + G on the upper plate and -o on the lower plate. Use the coordinates shown. a. Use the Maxwell stress tensor to find the pressure on the top plate. b. What is the value of R that gives zero pressure? Write it in terms of h, W and fundamental constants. Resistor Battery Width W perpendicular to the page | x ’ y