Question

What is the amount of work in moving a 100 nC charge between two points 5 cm apart on an equipotential surface?

Answer 1

what do u think?

Answer 2

@Imtiaz7 ?

Answer 3

The clue is.. ITS AN EQUIPOTENTIAL SURFACE

Answer 4

yah ik!

Answer 5

yes it is

Answer 6

so there is no potential difference between any points on the surface!

Answer 7

what does it yield then?

Answer 8

thanks @random231 i got it as there is no potential difference so there will no no work that is zero because potential difference is the work done in moving a q coulomb charge from one point to another.
thank you so much for helping me

Answer 9

bullseye!!!! :D

Answer 10

i have a bonus question for you

can you now tell me what is the angle between E field and equipotential surface locally? and give reason?

Answer 11

i know i know!!!

Answer 12

but yah its for imtiaz!!

Answer 13

there will be right angled between and a test charge can be moved without any electrical work being done. Since work involves parallel components of force and displacement, it follows that equipotential surfaces and electric lines of force are everywhere at right angles, i.e., the test charge must move perpendicular to E-lines (direction of force) if no work is done.

Answer 14

wow.. couldn't have said better myself :P