Recent content by ziplock2k

I'm sort of lost, as you can tell, and I need help.

Homework Statement A point charge of +2.7 mC is located at the origin of a coordinate system and a second point charge of -7.8 mC is at x = 1.5 m. At what point on the x-axis is the electrical potential zero? Calculate to 2 decimal places. Homework Equations The Attempt at a...

C=Keo(A/d) =3.7(8.85E-12)(18.2E-4/1.1E-3) =54.18E-12 Qmax=C(deltaVmax) =(54.18E-12)(1.5V) =300E-12 C 81.27E-12 C Is my new calculations right?

Homework Statement A parallel-plate capacitor has dimensions 3.5cm x 5.2 cm. The plates are separated by a 1.1-mm thickness of paper (dielectric constant k = 3.7). What is the charge that can be stored on this capacitor, when connected to a 1.5-V battery? (E0 = 8.85 x 10^-12 C^2/Nm^2)...