108 Current and ResistanceP27.3QtIdt Iettafej==−z−001τ(a)QIeIττ=−=−01010632.(b)eI1010 999 950100bg=−=−.(c)eI∞=−=−∞001P27.4(a)Using kermvre222=, we get: vmre×26219 10. ms.(b)The time for the electron to revolve around the proton once is:trv××=×−−225 29 10152 1011616π...mmss.The total charge flow in this time is 160 1019.×−C , so the current isI=××=−−−160 10105 1010519163...C1.52 10sA mA.P27.5The period of revolution for the sphere is T=2ω, and the average current represented by thisrevolving charge is IqTq2.P27.6qt t=++4563A=FHGIKJ−200100200 1024..
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This note was uploaded on 12/14/2011 for the course PHY 203 taught by Professor Staff during the Fall '11 term at Indiana State University .