- #1
fa08ti
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can someone explain the application of the right hand rule? I'm totally lost. i'd like to understand how it's used
Right Hand Rule: Explained for the Lost
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SUMMARY
The Right Hand Rule is a crucial concept in physics, particularly in understanding vector relationships in torque and magnetic force. It simplifies the application of cross products, allowing users to determine the direction of resultant vectors. For magnetic force, the Lorentz force is represented by the equations F = q(v x B) and F = L(I x B). The method involves using the right hand to visualize the vectors, where fingers represent the first vector and the curl towards the second vector indicates the direction of the force.
PREREQUISITES- Understanding of vector mathematics, specifically cross products.
- Familiarity with the Lorentz force equations in electromagnetism.
- Basic knowledge of torque in physics.
- Ability to visualize three-dimensional vector relationships.
- Study vector cross products in detail, focusing on their geometric interpretation.
- Learn about the applications of the Lorentz force in electromagnetic systems.
- Explore torque calculations and their physical implications in rotational dynamics.
- Practice using the Right Hand Rule in various physics problems to reinforce understanding.
Students of physics, educators teaching electromagnetism, and anyone seeking to master vector analysis in physical applications.
- #2
cupid.callin
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fa08ti said:
Can you tell me the area of physics u want ti use it (torque, mag. force or something else?)
- #3
I like Serena
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MHB
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Hi fa08ti! 
In various learning materials a lot of right hand rules and left hand rules are introduced.
I always forget how they work exactly.
Luckily in each field where one is defined, there is a formula relating the relevant vectors with a cross product.
I you use those formulas, you only need one right hand rule.
The one that is related to the cross product.
Do you know what the cross product is?
And if so how to find the direction of the resultant vector?
In various learning materials a lot of right hand rules and left hand rules are introduced.
I always forget how they work exactly.
Luckily in each field where one is defined, there is a formula relating the relevant vectors with a cross product.
I you use those formulas, you only need one right hand rule.
The one that is related to the cross product.
Do you know what the cross product is?
And if so how to find the direction of the resultant vector?
- #4
fa08ti
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it's for magnetic force
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I like Serena
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MHB
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For magnetic force (Lorentz force) there are 2 formulas:
F = q(v x B)
F = L(I x B)
My methodTM () is:
Screw the first vector onto the second vector with the fingers of your right hand and your thumb will point into the direction of the force F.
F = q(v x B)
F = L(I x B)
My methodTM (
) is:Screw the first vector onto the second vector with the fingers of your right hand and your thumb will point into the direction of the force F.
- #6
cupid.callin
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\vec{v}X\vec{B} means that angle b/w them turns from v to B
open ur fingers ... point them in direction of v ... curl them along the angle so that they go towards B
then thumb gives force
open ur fingers ... point them in direction of v ... curl them along the angle so that they go towards B
then thumb gives force
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