B What is the Relationship Between Electric Field and Force on a Charged Particle?

[ewimmenauer]

I came across a problem that I am trying to study for
It contained Vertical lines 30 V, 40 V, and 50 V. It had a point on 40 V and said they were .03 m apart. It asked for the Force acting on the point. Can anyone explain how to solve or tell me what kind of problem this is?

 

[kuruman]

I suspect that it's a problem in electrostatics. Does the problem ask for the force acting on the point or on the point charge? It makes a difference ...

 

[ewimmenauer]

I can not remember. Thats the problem.

 

[ZapperZ]

I can not remember. Thats the problem.

Let me understand the situation correctly. You are trying to solve a problem that you can't remember. Is that what is happening here?

Zz.

 

[ewimmenauer]

I teach math and have little background in physics. I took the content test to teach physics. Did not pass. Going to take it again and I am trying to remember certain questions I struggled with. Can you help me now or do you need more explanation?

 

[davenn]

Can you help me now or do you need more explanation?

no we cannot ... we need to know the exact question that you were asked in the test,
not your vague remembrance of it.
How else do you expect us to give a sensible answer ?D

 

[ZapperZ]

I teach math and have little background in physics. I took the content test to teach physics. Did not pass. Going to take it again and I am trying to remember certain questions I struggled with. Can you help me now or do you need more explanation?

Besides the fact that this is all very vague, it is also posted in the wrong forum. So no, I’m not touching this at all.

Zz.

 

[mpresic3]

The force will depend on the charge of the particle. Is it an electron (negative) charge, a proton (positive) charge, a neutron (zero charge), or an alpha particle (+2 Charge), etc.

You could probably infer the field strength from the separation between the lines (0.03 m). The charge difference between consecutive lines is 10 V. the separation is 0.03 m. It is natural to infer that the E-field will be 10 V / 0.03 m or 333 Volts per meter. The trouble is if you do not know the charge, you cannot get the force from the field strength. Best to brush up on some elementary electrostatics.