Recent content by Alex Farraday

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    Engineering Quality factor and freq bandwidth in a series RLC circuit

    Homework Statement How and why does quality factor change in a series RLC circuit when the resistance in the circuit increases? I've made a small experiment circuit which looks like one in the picture: The current frequency is 1 kHz and the voltmeter should show 2V throughout the whole...
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    Transformer with open iron core?

    I don't understand a part of it. How can the flux pass across U in the middle, when both sides of U have coils around them, how can the flux pass through the coils? Look at this video for me please: That's exactly what I'm trying to describe. Now, just imagine there's no upper side, so we get...
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    Transformer with open iron core?

    Hello everyone, I'm not sure if the title makes sense, but I'll try to explain it a bit better here. So, if we have a transformer with an open iron core (U shaped iron core, with coils wrapped around each side, same number of coils, same thickness), why is the electromagnetically induced emf in...
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    Magnetic force on a charge outside of toroidal coil

    Homework Statement Turns of wire would around a toroidal core, carrying a sinusoidal alternating current i(t), represent a toroidal coil in my case. My question is, does magnetic force affect a non-moving charge outside of toroidal core and is there a magnetic field outside of toroidal core...
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