Recent content by yosimba2000

1. Conservation of Energy on Current-Carrying Wire in Magnetic Field

So force on a current carrying wire = ILxB. If I have a bunch of bar magnets making a uniform magnetic field of strength B, then a 1 meter long wire of 0 ohms carrying 1 Amp, the force on that wire is (1)(1)xB = 1B. If I let that force move the wire for a time T, let's assume the wire moved a...
2. How does the saturation flux density affect magnetic field strength?

So I'm confused what the Saturation Flux Density is referring to. Defintion says it is when you no longer get an increase in H-field when increasing external B-field. So, does the satuation flux mean the core can only create fields UP TO that saturation flux, or that it can make a stronger...
3. Understanding energy conservation in a solenoid

Thanks, I got it now :)
4. Understanding energy conservation in a solenoid

Ah sorry, I should have said the potential energy of the magnetic ball.
5. Understanding energy conservation in a solenoid

So let's assume ideal wire, resistance = 0 Ohms. Also assume there is a magnetic ball 1 meter away and is attracted to the solenoid. If you have a loop of wire and run a small current through it, you get a magnetic field. This field attracts the magnetic ball, over a distance of 1 meter. If...
6. Not understanding work stored in a capacitor

Ok, so dq represents the incremental charge to be applied on the capacitor plate and not an imaginary test charge between the plates? I'm getting my original info from here, first paragraph: http://hyperphysics.phy-astr.gsu.edu/hbase/electric/capeng2.html
7. Not understanding work stored in a capacitor

Yes, that's where I am getting caught up. For a spring, each small distance you move affects the spring force, and that force is applied specifically for that small distance dx. But for a capacitor, each small charge you add to the plate increases the voltage, but why is that voltage applied...
8. Not understanding work stored in a capacitor

I know V = q/c and W = Vq and dW = V dq. But why is Work in charging a capacitor W = integral of q/c dq? q seems to represent a charge on the capacitor plate and dq seems to represent a separate test charge. If I add a charge to the capacitor plate, I take take the resulting votage and multiply...
9. Why do sound waves not bounce off of each other?

The reflection would be a wave bouncing off an incoming wave. S predicts you can add the two waves together to get the net wave, and that waves pass through each other. For two different amplitudes, my R hypothesis says the colliding waves will reflect with their original amplitudes, while S...
10. Why do sound waves not bounce off of each other?

Yes, this is exactly the mentality that I had when asking this question. Unfortunately, Orodruin's answer went a bit over my head. So here's my thought experiment. We have a sound source producing a soundwave every second (1 Hz), the soundwave travels at 1 m/s, and there is a perfectly...

Ok
12. Where does static friction come from in ABS?

Ok, so a perfectly slippery road and the car was in motion beforehand. Makes sense so far then.
13. Where does static friction come from in ABS?

Oh, I was referring to a different scenario in that question, sorry. How could the car ever stop in a no-loss situation?
14. Where does static friction come from in ABS?

It all makes sense except for how the car translates without tangential force.
15. Where does static friction come from in ABS?

Like a wheel spinning on ice just spins in place until it has grip to move forward (translation), which is offered by the tangential force from the road when the wheel pushes the ground.