PHYS 1008 Lecture Notes - Lecture 2: Alpha Particle, Electric Field, Electric Potential
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Find the electric field and the potential at the center of a square of side 2. 0 cm with charges of + 9. 0 c at each corner. Charges of + 2. 0 nc and - 1. 0 nc are located at opposite corners, a and c, respectively, of a square which is 1. 0 m on a side. 17-27 (a) find the potential at points a and b in the diagram for charges q1 = + 2. 50 nc and q2. An electron is accelerated from rest through a potential difference v. Be sure to include the correct sign. (does the electron move through an increase or a decrease in potential?) An alpha particle (charge +2e) moves through a potential difference v = - 0. 50 kv. Its initial kinetic energy is 1. 20 10-16 j. A parallel plate capacitor is charged by connecting it to a 12- v battery. The battery is then disconnected from the capacitor.
