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Chrome File Edit View History Bookmarks People Window Help * i 1 ) @ E 96% O Fri 8:43 PM Q = N Netflix O IAMDDB - Shade - YouTube x Y The Export TA | Human-like Gix C Chegg Study Guided Solutio X XC Solved: A positive point chargx Akram + C Secure https://usi38ok.theexpertta.com/Common/Take TutorialAssignment.aspx # @ : Home | Student: asa493@utulsa.edu My Account Log out 5 PM Spotify Class Management | Help Hw 5 Begin Date: 2/23/2018 12:01:00 AM -- Due Date: 3/2/2018 11:59:00 PM End Date: 3/2/2018 11:59:00 PM (25%) Problem 4: Consider the magnetic fields and direction of forces shown in the figure. EXPERT ot e PM Screen She 2017-1...9.15 Assignment Status X X X Click here for detailed view (c) Otheexpertta.com Screen Sha 2017-1...9.34 Problem Status 33% Part (a) What is the direction of the velocity of a negative charge that experiences the magnetic force shown in (a), assuming it moves perpendicular to B? O into the page Oright Ono force Odown Grade Summary Deductions Oleft Potential 100% Cup Screen She 2017-1...1.03 hot B7 PE Submissions Attempts remaining: S (20% per attempt) detailed view Submit Hint Feedback I give up! Hints: 4% deduction per hint. Hints remaining: 3 Feedback: 5% deduction per feedback. Screen She 2017-1...1.09 E A 33% Part (b) What is the direction of the velocity of a negative charge that experiences the magnetic force shown in (b), assuming it moves perpendicular to B? E A 33% Part (c) What is the direction of the velocity of a negative charge that experiences the magnetic force shown in (c), assuming it moves perpendicular to B? Screen Sha 2017-1...1.15 All content 2018 Hapet TA, LLC W syllabus 2018 (6).docx - + Show AlxExplanation / Answer
The magnetic force F experienced by a charge q moving with a velocity v, in a magnetic field of strength B is
F = q (v x B)
The direction of the magnetic force is perpendicular to both velocity and the magnetic field.
a) If the direction of the velocity of the negative charge is to the right.Then the direction of the
(v x B) will be in the up direction
You can verify this using the direction of the cross product. Curling your fingers from v to the direction of B. The direction of the extended thumb shows the direction of the magnetic force. Since the charge is negative in this case, the actual direction of the force should be opposite to what we found from the procedure.
Thus the direction of the velocity should be to the right.
b) In this case, the direction of the magnetic field should be into the plane of the paper.
c) The velocity should be in the downward direction
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