Question

Name

Extra Credit

DUE FRIDAY MAY 18TH AT 10:00 AM via email

1. A 31 ?F , a 12 ?F , and a 60 ?F capacitor are connected in series with each other and a 15 V battery. What is the voltage across each capacitor?

2. A point charge of 6 ?C is located at x = -3.0 cm, and a second point charge of -33 ?C is located at x = +4.0 cm. Where should a third charge of +6.0 ?C be placed so that the electric field at x = 0 is zero?

3. Two spheres are mounted on identical horizontal springs and rest on a frictionless table. When the spheres are uncharged, the spacing between them is 0.05 m, and the springs are unstrained. When each sphere has a charge of +1.50 C, the spacing doubles. Assuming that the spheres have a negligible diameter, determine the spring constant of the springs.

Answer 1