Field pattern -- Which can be produced by 2 point charges?

[Cici2017]

Homework Statement

Homework Equations

The Attempt at a Solution

why not B?

 

[Merlin3189]

Where do electric field lines start and end?

 

[Cici2017]

Where do electric field lines start and end?

from positive to negative.

 

[Merlin3189]

So if you have two charges, where would they be in B?

 

[Cici2017]

So if you have two charges, where would they be in B?

ummm... no, it can't be B.

 

[Merlin3189]

You could try drawing two point charges and sketch some electric field lines.
None of the pictures is perfect, but see which one looks a bit like your sketch (or rather, two sketches, because ...)

 

[Cici2017]

You could try drawing two point charges and sketch some electric field lines.
None of the pictures is perfect, but see which one looks a bit like your sketch (or rather, two sketches, because ...)

Yes, thank you~

 

[berkeman]

Are you sure the problem is asking about Electric fields? I get a different answer if they are talking about magnetic fields...