Q6 - PHYSICS 2B(a QUIZ 6 SPRING QUARTER 2000 PROF SCHULLER...

Info iconThis preview shows pages 1–11. Sign up to view the full content.

View Full Document Right Arrow Icon
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 2
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 4
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 6
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 8
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 10
Background image of page 11
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: PHYSICS 2B(a) QUIZ 6 SPRING QUARTER 2000 PROF. SCHULLER MAY [2. 2000 Coulomh' s Law l3 : I (1—131? For a capacitor 42:80 r“ CV = Q 1 r . -' _' ] EDA . Gauss s Law §E - dA = —I p (N C : — (Parallel Plate) s 80 v d . i. . l‘ '- 1 1 qiqi . Definition of PotentIal V = I E - dl U = -——~——Z——'-r Electrostatic Energy ” 47:5” 2 tej rtj 2 £028.9x10'” C 2 R=p—]-"- 12:1"—v Nm A :13 E = iv V = R1 RC Circuits Char ' ‘ F : qv X B F = iL X B rszB §l§ dl = ADJ] d3 Amperc‘ s law B(r) = E a 2m 1. In the circuit shown in the figure below. calculate: a) the time dependence of the current through the resistor with S disconnected. b) the time dependence of the current through the resistor with S connected. c) the time dependence of the charge in the capacitor with 5 connected. Assume that the initial charge in the capacitor is q(0) = 0. PHYSICS 213(3) QUIZ 6 SPRING QUARTER 2000 PROF. SCHULLER ' MAY 12. 2000 2. Sineg ionized atoms that have been accelerated through a potential 01‘800 V describe a circular trajectory of lo-cm radius in a magnetic field of 0.20 T. What is the mass of these atoms? In. “‘41-'33... ‘ "I" AI «I .. o- 3. A wire of 62.0 cm length and 13.0 g mass is suspended by a pair of flexible leads in a magnetic field of 0.440 T (see figure below). What are the magnitude and direction of the current required to remove the tension in the sdpporting leads? (52.0 cm —*l 4. (BONUS) Name an important invention in the field of electronics. L 1;! f (— TLC... L. 5* Harmd 12C. Llflf-JA: , 9.9 'H'“ Luv-u? eguokbéh 91% .. 1 -' =3 - fl ~.h :g—u- : C) E'In- E'- hC'.) E a” 1?. C “HF-‘- 'Snblh lulx... For ‘I'L-L Luff-lm+ 1 Ann: Mr- —R e G) FL 6%) —-M.M 1 -—-C E “mu. ‘Hm. Sw:+f__,L-fl glam J #14. “Pm:+fif L: chaff" ctrcw‘vHA 1 5O cuff-ME? 4-!de 'erntnnxk “HM-L rqtlfi‘hrr' laugh. “[1; “ELI lanfl—U‘j); Su .3“ (flak-S ("[u- R n J— E. (M tun-l C ‘- =3 "5 I “QMMU. whim winks. Liam ~H-k fwA‘Jfi, Lynn Shar‘l' -¢Lfrgwl‘l‘ I +Lx.L mpacthr‘, '59 4"“. that? almafk Emmdidcl'tfb c. i 6w“ h 1 m- (9 fl 5’ ) .k. G) (LGHOHH c. Q.10T)‘- (.19, MIL M'; ___————-——-~—-‘——"—"-*-~——-—- ; (r500 rl cjtd‘ laud. HALL] wry-mi mud" rtcah+ ® \?3\ = mg 7?.3 r’ a wig (at ‘Ffix 1 195 E‘ ‘9 /' D Luvrqp¥ {K J_. 4!: a -—-s- 111613 kahuna rorwa F3 '3 :13 Mes 1‘ “"3 = I: __..._—- a” m (313%) (1% m/SL) (.61m)‘ (AH T) = o.%"-} A ____________—____—_ PHYSICS 213(h) QUIZ a SPRING QUARTER 2000 PROF. SCHULLER MAY 12, 2000 a l , A . Coulomb a Law F = r For a capacnor .0 l" CV = Q 1 . -« ~ 1 80A causs a Law 3GB; - (M = ——‘[ p av c = T (Parallel Plate) 5 V . . . _ . P *- -' l l qiqi ‘ v Deflnltlon of Potential V =I E - d] U: — —-— Electrostatic Energy °° 2 Iii s,,:s,9><lo” “2 R=p£ =i"—" Nln A qB E 2 —6V V = ‘RC Circuits F = qv x B F = 11. X B r:uxB fifi'di = #uIJ'dE Ampere's law BU) = 52—; In the circuit giVen in the figure below, the currents are unknown. :1) Write down some of the equations which he] currents. b.) Write down the differential equation for the charge across the capacitor. c) Solve for the time dependence of the charge across the capacitor assuming that the initial charge q(0) = 0. [3 you solve for the unknown PHYSICS 2B(b) QUIZ 6 SPRING QUARTER 2000 PROF. SCHULLER ' MAY 12, 2000 2. Sineg charged ions that travel at a speed of 2.0 x IO'5 m/s enter a uniform magnetic field of 1.20 T that is directed perpendicular to the velocity of the ions. The ions are observed to follow a circular trajectory of 2.20-m radius. Calculate the mass of the ions. 3. A metal wire of mass m slides without friction on two horizontal rails spaced a distance d apart, as in the figure below. The track lies in a vertical uniform magnetic field B. There is a constant current 2' through generator G, along one rail, across the wire, and back down the other rail. Find the speed and direction of the Mre's motion as a function of time. assuming it to be stationary at t = O. 4. (BONUS) Name an important invention in the field of electronics. 'l #1 . ' mag-LIL NH“. ' I1. = 11- + 1'5 @ @D loop [aw-S Z "Inf “3/; :0 {- -1'.r - 11R =c3 Lab“ .313 34:, - 119 w 6:5 W pun-J4. (Mn esmx+tnm 'hvnlML-j 11 musk c5 solH anumuk 12E Er II {F IIY- -1312 :0 "=3 1.: £_]'_1£ “' r Lain Inga-GILL 1% _ a K 1‘41”; =3 {1. 37 ~I‘1-“L3 f/r “I1. “:33 'I3 .3 (1+ I"’yfr) not») nih— UH "Huh 0%») E z/r #11, ‘ .6 H 12 '= C) (HR/r) t v: K :(H; -5; +I1K=CD i ‘6 _ __ If IL ' r —' E- 7) alt z ‘é. )3 :1") : .._-- - ——- *- fl 1' (at; C1 + "' .> ® 3E3 gwcn—I. +14. mmgMb}. 4134 E L, _L_ {a 34- ind-mink n1: 'H-uL mrrLud" J 44-41 M 'anL-EL CARJ LIKE-inch?) fflf—Cl" [mama/L {MI-Q“, 4.1-... FerL c4, +6, F M1w¥bw5 luau-.1 =53 F'— MA‘ 1:")- m: .2: m, «cm om m =(1:H= T + Slém 'H~L 'Fo-ru. 1,. Jru “Hut 1% “(4,; 1”“ wins waka x. +;. 1L4 L2H, ...
View Full Document

This note was uploaded on 03/23/2009 for the course PHYS 2b taught by Professor Schuller during the Spring '08 term at UCSD.

Page1 / 11

Q6 - PHYSICS 2B(a QUIZ 6 SPRING QUARTER 2000 PROF SCHULLER...

This preview shows document pages 1 - 11. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online