FinalExam2009spring

# FinalExam2009spring - FinalExam2049H Name 1 2 3 4 5 6 7 8...

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Final Exam 2049H Name: 1 2 3 4 5 6 7 8 Complex Impedance Capacitor: 1 i ω C , Inductor: i ω L

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Problem 1 True or False Questions (a) Flux of Magnetic field through any closed surface is zero. (b) Magnetic field can be used to change the energy of charged particles. (c) A straight current‐carrying wire has a finite inductance. (d) Inductors can store energy. (e) Electric field inside an ohmic resistor wire is directly proportional to current through it.
Problem 2 At t = 0, a charged particle with charge of q sits at (0,0,0)=(x,y,z). At this point, an electric field pointing in x direction is turned on. The magnitude of electric field is E. [ E  = E ,0,0 ( ) ] (a) Write force on the particle in the vector form (b) Find acceleration in vector form (c) Find the location of the particle at t=t f

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Problem 3 A charged particle with charge of q has been accelerated through a potential drop of 1000 V. After this initial potential drop, the particle does not experience any force due to electric field. You may assume that the particle is moving from left to right.
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