Register to reply

Help with getting an expression for Electric field from a variable Voltage

by quackzilla
Tags: electric, expression, field, variable, voltage
Share this thread:
Jul15-07, 07:02 PM
P: 4
It gives V(x,y,x) = A(x^2,-3y^2,z^2) and asks for E.

What I have done:

E is equal to V/d , and I assume d = (x,y,x)

Dividing them I get E= A(x,-3y,z)

What am I doing wrong?

I also have another question:

In every plane parallel to the xz-plane the equipotential contours are circles. What is the radius of the equipotential contour corresponding to V=1280V and y=2m? (this is an extension of the previous question).

I have a test tomorrow, and there are a few things I still don't know how to do. Any hints on how to do these would greatly help my studying.
Phys.Org News Partner Science news on
Wildfires and other burns play bigger role in climate change, professor finds
SR Labs research to expose BadUSB next week in Vegas
New study advances 'DNA revolution,' tells butterflies' evolutionary history

Register to reply

Related Discussions
Deriving Electric Field from Voltage Introductory Physics Homework 1
Voltage and electric field in circuits Introductory Physics Homework 5
Uniform Electric Field:finding Voltage Introductory Physics Homework 21
Voltage in electric field Introductory Physics Homework 10
Voltage/ electric field question Introductory Physics Homework 3