Question:9 VA Magnetic Fields www webassign.n 16032011 Q9 et/web/Student/Assignm

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Question:9

VA Magnetic Fields www webassign.n 16032011 Q9 et/web/Student/Assignment-Responses/submit?dep Search Most Vi 3 pharmCAs Applicant Getting started 3 PCAT OPT My Profile min mul Need Help? Read It Watch It 9, 112 points I Previous Answers SerCP10 19 P009.MI FB My Notes Ask Your Teacher A proton moving at 4.60 x 106 m/s through a magnetic field of magnitude 1.80 Texperiences a magnetic force of magnitude 7.00 x 10 13 N. What is the angle between the proton's velocity and the field? Enter both possible answers from smallest to largest. Enter only positive values between 0 and 360 smaller value 31.9 larger value Need Help? Read it Master t Submit Answer Save Progress Practice Another Version 10. 616 points I Previous Answers SerC 19.P012. My Notes Ask Your Teacher In the figures below, assume that in each case the velocity vector shown is replaced with a wire carrying a current in the direction of the velocity vector. For each case, find the direction of the magnetic force acting on the wire. Figure a to the left Figure b o the page v Figure c out of the page VI Figure d upward Figure e into the page 636 PM a Ask me anything 4/13/2017

Explanation / Answer

9)We know that, force on a moving charged particle in magnetic field is given by

F = q v B sin(theta)

theta = sin-1 (F/ q v B)

theta = sin-1 [7 x 10^-13/(1.6 x 10^-19 x 4.6 x 10^6 x 1.8)] = 31.9 deg

Also, theta = 31.9 + 180 = 148.1 deg

Hence, smaller value = 31.9 deg and larger value = 148.1 deg

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