Magnitude of the angular momentum?

AI Thread Summary
The discussion centers on calculating the angular momentum of a charged particle moving in a circular orbit under the influence of a magnetic field. The user successfully calculates the linear momentum but struggles to find the appropriate equation for angular momentum. They consider the formula L = Iω but question its applicability due to the complexity of calculating moment of inertia in this context. The conversation emphasizes the need for clarity on angular momentum in magnetic fields. Understanding the relationship between linear momentum and angular momentum in this scenario is crucial for solving the problem.
erik-the-red
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Question:

A particle with charge 6.40 * 10^(-19) C travels in a circular orbit with radius 4.68 mm due to the force exerted on it by a magnetic field with magnitude 1.65 T and perpendicular to the orbit.

It then asks for the linear and angular momentum.

I got the linear momentum by using an equation I found in the text. But I didn't find any equation for the angular momentum, and that is where I'm stuck at.
 
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Let's start with a definition: http://scienceworld.wolfram.com/physics/AngularMomentum.html" .
 
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radou, thanks a lot. I was thinking about L = I\omega, but I thought that calculating the moment of inertia was probably not the right thing to do in this problem.
 

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