Answer: Potential Difference Va-Vb for 4.3 nC Particle in 225 N/C Field

Click For Summary

Homework Help Overview

The problem involves calculating the potential difference between two points in a uniform electric field, specifically with a charge of +4.3 nC in a field of 225 N/C. The context includes understanding the relationship between electric force, work done, and potential difference.

Discussion Character

  • Exploratory, Assumption checking, Conceptual clarification

Approaches and Questions Raised

  • Participants discuss the need for the distance between points a and b and whether the movement is along the field lines. There are inquiries about the units used in calculations and the understanding of charge measurement. One participant suggests that potential difference can be derived from work done and charge.

Discussion Status

The discussion has seen various points raised regarding necessary information for solving the problem, including distance and unit considerations. Some participants have provided hints and clarifications, while one participant claims to have resolved the issue independently.

Contextual Notes

There is a mention of missing information regarding the distance between points a and b, which is critical for calculating the potential difference accurately. Additionally, the discussion touches on the importance of units in the context of electric potential difference.

phy112
Messages
37
Reaction score
0

Homework Statement



a uniform electric field has magnitude E = 225 N/C and is directed to the right. A particle with charge +4.3 nC moves along the straight line from a to b.
What is the potential difference Va - Vb between points a and b?

Homework Equations



Potential dif=Va-Vb

The Attempt at a Solution



I found the electric force and the work done on the particle. electric force is .968 and the work done is .242
 
Physics news on Phys.org
Four comments:

1. We would need to know the distance between a & b, and whether they lie "along" the field line or at some angle to the field, in order to answer the question.

2. You didn't put units with your answers.

3. Are you aware how much a nanoCoulomb is?

4. Electric potential difference can be determined from the work down and the charge.
Hint: units of potential difference are Volts, which are equivalent to Joules per Coulomb.
 
the distance is .25 m.
 
I figured it out. Thanks a lot!
 

Similar threads

Replies
1
Views
2K
Replies
3
Views
2K
  • · Replies 12 ·
Replies
12
Views
7K
  • · Replies 1 ·
Replies
1
Views
1K
  • · Replies 1 ·
Replies
1
Views
5K
Replies
1
Views
2K
Replies
8
Views
2K
  • · Replies 2 ·
Replies
2
Views
1K
  • · Replies 22 ·
Replies
22
Views
4K
Replies
3
Views
2K