All questions
AP Physics C: E&M
9.2 Electric Potential
IntermediateMCQMathematical18k
A thin disk drawn as a wide flat ellipse viewed at a slight tilt, centered in the lower half of the figure, its face shaded light gray. A small black dot marks the disk's center. One solid arrow starts at the center dot and runs along the disk's surface toward the right, its arrowhead touching the ellipse's right edge, labeled R at the arrow's midpoint. A vertical dashed line rises from the center dot to the upper part of the figure. A small black dot on this line, near its top, is labeled P just to its right. The segment of the dashed line between the disk's center and P is labeled z at its midpoint, placed to the left of the line. Exactly two labeled measures (R and z) and one labeled point (P) no rings, no dr or s markings, no x or y axes, no formulas, and no other labels.
A uniformly charged disk and a point P on its central axis.
A thin, nonconducting disk of radius \(R\) is located in the \(xy\)-plane with its center at the origin. The disk has a uniform surface charge density \(\sigma\). A point \(P\) is located on the \(z\)-axis at a distance \(z\) from the center of the disk. Which of the following expressions correctly represents the electric potential \(V\) at point \(P\), assuming the potential is zero at infinity?

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 C: E&M? 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