All questions
AP Physics 2
12.2 Magnetism and Moving Charges
IntermediateMCQMathematicalConceptual13.6k
A rectangular region containing a uniform magnetic field directed into the page, represented by a grid of small x symbols labeled B. Two positively charged ions, labeled Ion 1 and Ion 2, enter the left boundary of the region moving horizontally to the right. Ion 1 has a horizontal velocity vector arrow labeled v_0. Ion 2 is drawn below Ion 1 with a longer horizontal velocity vector arrow labeled 2v_0. Dashed semicircular trajectories bend upward inside the magnetic field region, where the circular arc for Ion 2 has twice the radius of the circular arc for Ion 1. No other labels, lines, text, or axes appear.
Trajectories of Ion 1 and Ion 2 in a uniform magnetic field.
Two identical positively charged ions, Ion 1 and Ion 2, enter a region containing a uniform magnetic field \(\vec{B}\) directed perpendicular to their velocity vectors. Ion 1 enters the field with speed \(v_0\), and Ion 2 enters with speed \(2v_0\). Which of the following correctly compares the period \(T_1\) and \(T_2\) required for each ion to complete one full circular revolution, and provides the correct justification?

Log In to Continue

Accounts are free! Log in to try this question, see explanations, save progress, and more!

Similar Questions

Tools for a 5

The Quiz Lab library of AP Physics quizzes AP aligned mock tests to help you get a 5. With grading, adaptive explanations, and more. Find a Quiz Find, solve, and grade every AP FRQ ever. Find an FRQ Stuck on AP Physics 2? Get unstuck with an AP specialist.1 to 1 tutors who know the exam inside out. Understand weeks of material in a single session.Find a Tutor Learn AP Physics from scratch, quickly. This is the only course you'll need for the year. A self-paced course with everything you need to get a 5. Trusted by over 15,000 students and 200+ schools. Learn fast, or we'll refund your purchase, backed by our 100% satisfaction guarantee. Explore the Course