PHY-252-101-2024SP: Proble X PS1.pdf File /Users/moesaleh/Downloads/PS1.pdf M Gmail YouTube PS1.pdf Courses Content Washington, D.C. t... Review Trip Detail... 1 / 1 75% + Problem Set #1 - Chargers, Coulomb's Law, Electric Fields PHY 252 Be sure to read each question thoroughly, answer all parts, use complete sentences, show all your work, and always include units throughout your process. 1. How does charge mobility differ between conductors and insulators? 1 2. What is an electron cloud? 3. What is the fundamental unit of charge? 4. What is an electric dipole? 5. Explain, in your own words, what "charging by induction" means. 6. What is an induced dipole? 7. Why does an electric dipole experience NO net force in a uniform E-field but a net force in a non-uniform E-field? 8. Suppose two particles with +2.0nC of charge sit 1.0cm apart from each other. A third particle of charge +1.0nC sits 0.5cm above the midpoint between the first two. What is the net force experienced by the third charged particle? 9. Suppose a thin wire of length L and uniform charge Q is bent into a semicircle. Derive an expression for the E-field at the focus of this semicircle. 10. Suppose two wires of length L and charge Q were bent into quarter-circles. The wires were then placed around a focus such that one wire spans the first quadrant and the second spans the third quadrant. Is there an observable E-field at the focus? How might this change if one wire was oppositely charged? Quantify your answer. 11. A 2.0cm-long electron gun is used to fire electrons horizontally toward a screen 5.0cm away from its end. If an electron enters the gun at 3.0 107 m/s what must the strength of be such that the electron hits the screen 1.0cm above the "neutral" location (where an electron would hit if EON/C)? | M Relaunch to update : All Bookmarks