Question

can an electric field exist at a point where the electrical potential there is zero

Answer 1

Yes, the actual value of the potential is irrelevant -- only its gradient matters.

Answer 2

really

Answer 3

Sure. It's the same way for gravitational potential.

Answer 4

wait E = Grad V

Answer 5

but if V = 0 then wont E always be zero

Answer 6

V = 0 does not imply that grad V = 0.

Answer 7

The function f(x) = x is zero at x = 0, but the slope there is still 1.

Answer 8

OH true!

Answer 9

thanks man

Answer 10

also umm what about this
A collection of points all at the same potential cannot be distributed throughout a volume. They must lie on a single surface

is this False

Answer 11

as a whole conductor can be at an equi potential so, its a volume of equi potential points

Answer 12

Yes, that statement is false.

Answer 13

you know any good places to learn electro dynamics, get a firm understanding on it

Answer 14

Walter Lewin's lecture series on MIT"s Open CourseWare is a good first course in Electricity and Magnetism.

Answer 15

yeah thats what ive been watching

Answer 16

http://ocw.mit.edu/courses/physics/8-02-electricity-and-magnetism-spring-2002/index.htm

Answer 17

hes an amazing teacher

Answer 18

He's excellent.