Monday
April 21, 2014

Homework Help: Physics

Posted by Monica on Thursday, September 1, 2011 at 6:04pm.

Consider a disk of radius 2.6 cm with a uniformly distributed charge of +3.6 C. Compute the magnitude of the electric field at a point on the axis and 3.3 mm from the center. The value of the Coulomb constant is 8.98755 10^9 Nm2/C2.
Answer in units of N/C

Compute the field from the near-field approximation x ≪ R .
Answer in units of N/C

Compute the electric field at a point on the axis and 31 cm from the center of the disk.
Answer in units of N/C

Approximate the field by treating the disk as a +3.6 C point charge at a distance of 31 cm.
Answer in units of N/C


This is what I know so far:
E=F/q=kQ/r^2

I started with E=(8.98755*10^-6)/(.0033 m)^2
E=2.97*10^9 N/C

I feel like I am missing a step. I know I use this idea though.

HELP! Thanks!

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Physics 1 - The hard disk in a laptop computer contains a small disk that ...
Physics 1 - The hard disk in a laptop computer contains a small disk that ...
physics - A uniformly charged disk of radius 35.0 cm carries a charge density of...
physics - A force of 100 N is applied tangentially to a disk of radius 10 cm ...
physics - a physical pendulum consists of a uniform solid disk (of radius R = 42...
Physics - A charged disk of radius R that carries a surface charge density σ...
PHYSICS - A charged disk of radius R that carries a surface charge density ...
physics - A uniform disk with a mass of 800 g and radius 17.0 cm is rotating on ...
physics - A curcial part of a piece of machinery starts as a flat uniform ...
Physics - A solid cylindrical disk has a radius of 0.18 m. It is mounted to an ...

Search
Members