The Coulomb's formula in vector form !
Hi, guys.
+The formula of Coulomb's law:
1) The magnitude of Coulomb's law: F= k|q1||q2|/r^2
2) Vector F12= (kq1q2/r^2)x vector unit r
+I don't get idea why we cannot put absolute data in the vector formula (the second formula). Why is it impossible to write:
Vector F12= (k|q1||q2|/r^2) x vector unit r.
+The formula of Coulomb's law:
1) The magnitude of Coulomb's law: F= k|q1||q2|/r^2
2) Vector F12= (kq1q2/r^2)x vector unit r
+I don't get idea why we cannot put absolute data in the vector formula (the second formula). Why is it impossible to write:
Vector F12= (k|q1||q2|/r^2) x vector unit r.
Because you'd lose the information telling you whether the force was an attraction or a repulsion.
In your formula, every force points in the direction of r12, which is an arbitrary choice (which one is 1 and 2?), rather than depending on the signs of q1 and q2 (which it does in reality).
In your formula, every force points in the direction of r12, which is an arbitrary choice (which one is 1 and 2?), rather than depending on the signs of q1 and q2 (which it does in reality).
Quick Reply
Related discussions
- A Level Mechanics.
- Vectors
- maths mechanics
- Linear Transformations Edexcel
- Vectory, velocity kinematics. HELP
- issac physics question help: between two masses
- Further maths help
- Maths igcse edexcel 2023 higher
- maths a level general mechanics question
- Vectors help!
- Further Maths Vectors Help
- Vectors
- Urgent Resultant force maths question plsss help!!
- Understanding physics #1
- maths help URGENT GCSE HIGHER
- Physics A Level question help
- Further Mechancis Impulse question
- Help with (AQA) Thermal Physics / Electric Fields A-Level question?
- Work Done by a Force 3
- Alevel maths edexcel vector
Latest
Last reply 2 minutes ago
Why is the political left now censorious and authoritarian??Last reply 3 minutes ago
OCR A-level Religious Studies Paper 3 (Christianity) - 20th June 2024 [Exam Chat]Last reply 4 minutes ago
Official London School of Economics and Political Science 2024 Applicant ThreadLast reply 5 minutes ago
IBM Degree Apprenticeship 2024Last reply 6 minutes ago
Weidenfeld Hoffmann Trust (WHT) Scholarship Notification (2024-2025)Last reply 16 minutes ago
LSE politics and Economics 2023/2024Last reply 16 minutes ago
Is it really such a bad thing to have an undefined relationshipLast reply 17 minutes ago
Home Office: Immigration Enforcement Casework Support AO 2024
