A charge Q = -820 nC is uniformly distributed on a ring of 2.4-m radius. A point charge q = +530 nC is fixed at the cent
Posted: Mon Jul 11, 2022 1:04 pm
A charge Q = -820 nC is uniformly distributed on a ring of 2.4-m radius. A point charge q = +530 nC is fixed at the center of the ring, as shown in the figure. (e = 1.60 × 10-1⁹ C, k=1/4neo = 8.99 × 10⁹ Nm²/C², mel= 9.11 × 10-³1 kg) O 2.4 m/ A 1.8 m B 1.4 m 9 = +530 nC Q = -820 nC (a) An electron is projected from infinity toward the ring along the axis of the ring. This electron comes to a momentary halt at point B. What is the initial speed of the electron at infinity? (b) Points A and B are located on the axis of the ring, as shown in the figure. What is the minimum work that an external force must do to transport an electron from B to A?