- #1
Electric Force and Field homework problem
- Thread starter balikci
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SUMMARY
The forum discussion centers around a homework problem related to Electric Force and Field, specifically using the equation F=(q1.q2)/4.pi.E. The user struggles with understanding the variables and how to apply them to the problem, which involves charges of 6 and 3, and an isosceles triangle configuration with sides 5-5-6. Forum members provide guidance on evaluating the expression without breaking it into components and suggest using conventional notation for clarity.
PREREQUISITES- Understanding of Coulomb's Law and electric force calculations
- Familiarity with scientific notation and its application in physics
- Basic knowledge of geometry, specifically properties of isosceles triangles
- Ability to interpret and manipulate algebraic expressions
- Review Coulomb's Law in detail, focusing on the variables involved
- Practice converting scientific notation into standard form for clarity
- Study the properties of isosceles triangles and their relevance in physics problems
- Learn how to evaluate forces in two dimensions without breaking them into components
Students studying physics, particularly those tackling problems related to electric forces and fields, as well as educators looking for examples of common student challenges in this area.
- #2
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Per forum rules, you must show some attempt.balikci said:
You have quoted a relevant equation. Start by explaining what the variables in it mean (so we can correct any misunderstanding) then what numbers from the problem should be plugged in where.
- #3
balikci
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I am new. I am sorry. I am puting parts which I solved here. I couldn't go further from here.
- #4
GiriBang
- 11
- 5
Is that equilateral?
- #5
balikci
- 3
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Triangle? No. Isosceles.5-5-6
- #6
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You started well with the expression for F1 and F2, but there seem to be subscripts I can't read on the charges 6 and 3. What are these?balikci said:
Then you resolved into x and y components, but you are not asked to do that for the first part. Just evaluate the expression you have.
You have not attempted the second part, right?
- #7
Cutter Ketch
- 982
- 446
For the first part everything looks pretty good.
Your choice of x and y labels is a bit unconventional, but there is nothing wrong with that. The one thing that I can’t figure out is your scientific notation as a subscript. I’ve never seen that before. It is particularly alarming as those all appear to be 4 s instead of 6s. Anyhow, you get the right power in the end, so it must make sense to you. You might want to consider doing something more conventional so it’s easier for the grader to understand and give you credit. Nevertheless it all appears correct and you just need to finish.
Now, what about part B?
Your choice of x and y labels is a bit unconventional, but there is nothing wrong with that. The one thing that I can’t figure out is your scientific notation as a subscript. I’ve never seen that before. It is particularly alarming as those all appear to be 4 s instead of 6s. Anyhow, you get the right power in the end, so it must make sense to you. You might want to consider doing something more conventional so it’s easier for the grader to understand and give you credit. Nevertheless it all appears correct and you just need to finish.
Now, what about part B?
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