Magnetic Force on an a Particle

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Homework Help Overview

The problem involves a charged particle moving in a magnetic field, specifically focusing on calculating the magnetic force acting on the particle. The subject area is electromagnetism, particularly the interaction between charged particles and magnetic fields.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • The original poster attempts to apply the formula for magnetic force but expresses uncertainty about the values used and the overall approach. Some participants question the accuracy of the magnetic field value used in the calculations. Others suggest using the Pythagorean theorem to find the magnitude of the magnetic field and inquire about determining the direction of the magnetic force.

Discussion Status

The discussion is ongoing, with participants exploring different aspects of the problem. Some guidance has been offered regarding the determination of the magnetic field's magnitude and the direction of the magnetic force, but there is no explicit consensus on the final answers or methods.

Contextual Notes

Participants are navigating the complexities of vector directions and the implications of the magnetic force's orientation relative to the axes, indicating a need for clarification on these concepts.

mlsohani
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Homework Statement



A particle with a charge of 35.7 uC moves with a speed of 61.1 m/s in the positive x direction. The magnetic field in this region of space has a component of 0.527 T in the positive y direction, and a component of 0.820 T in the positive z direction. What is the magnitude of the magnetic force on the particle?

Homework Equations


magnetic F=[q]vB
electric F=qE


The Attempt at a Solution


I really do not know what I am doing and need help
Here is an attempt:

F=qvB
(3.57 e-6 C)(61.1 m/s)(0.527 T)= 1.1495 e-4 N?
 
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It is almost correct, however you took the wrong value for B. What is the magnitude of B?
 
ok! SO I figured it out! You use pathagoreum Theorem and you end up getting that
B= 0.9756 T
I pluged that in and got the answert to be: 2.13 e-3 N

NOW though I don't understand what they are asking for when they ask:
What is the direction of the magnetic force on the particle relative to the positive z-axis?
is it just the + or - infront of the value I received for the force? Or is there a completely different asnwer?
 
Do you know how to determine the direction of the magnetic force when given the direction of v and B? Just draw a picture so you can see how the vector is placed with respect to the z-axis.
 

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