Electric Field due to a Disk

How to Calculate find the Electric Field of a point in space induced by a Disk. For a disk of radius R and Q multiplied by Q, calculate the magnitude of the electric field z from the center of the disk using all three formulas below, and using the accurate value.

Category:

Education

Tags:

• physics
• Electricity
• electric
• field
• disk

[25joao2007]

Hey, how do you find Z for the first long equation on this video? Will it be .001m? Thanks

[McRitchiePhysics]

@25joao2007 Yes it will be .001m, Z is just the distance between the center of the disk to the point were we are measuring electric field. Good Question :)

[zassounotsukushi]

Find the field in the vicinity of a disk without introducing any assumptions period. It's easier to do the integrals to find the potential, from which the field is trivial. I have this for a ring but I'm looking for it for a disk. I can't get past the integral of the elliptic integral. Yes yes, you can get hyper-geometry functions for this, but it's not so easy with the more complicated form from the ring charge distribution.