Ok, I understand, but this area is the same and B is uniform. When you take definition of magnetic flux and than its variation with time I don't see mention of this kind of change.
Thank you for the time you're giving to me
Hello everyone,
My question is between theorie and practical (so I'm still wondering if it's the right place). I'm reading Serway and Jewett. There's an example about the magnetic flux through a rotating bar and so and induced emf. I understand this emf will be equal to the the opposite of the...
Hi again, I found a fantastic video explaining what happens from both frames : . But there's still something I don't understand. At 2 min 22 he's mentioning the tension in the string acting as two forces : one vertically balancing the weight and another horizontally that plays the role of the...
Hi, thank you very much for your welcome and very quick answers !
I understood BvU; friction force must play the role of a string that pulls the mass toward the center at every moment. I'm currently reading a chapter about non-inertial frames. I understand these principles in the case of a...
Homework Statement
A box of mass m is set on a merry-go-round of radius r with a linear speed v. The friction coefficient between surfaces is μ.
Homework Equations
ac = v²/r
The Attempt at a Solution
I imagined this problem because I'm trying to understand more deeply circular motions. I have...