# magnetic

13. ### Direction of Magnetic Field

Hello, I'm a bit confused on determining the direction of the magnetic field in the attached image. From what I understand, for the top wire, the magnetic field points into the page. For the bottom wire, the magnetic field points out of the page. But what is the direction of the magnetic...
14. ### Magnetic field inside

What happens to the magnetic field inside this solenoid, if you double the number of revolutions, simultaneously stretching the solenoid twice as much as the original length? Suppose that the applied voltage was kept constant, and the additional wire length for additional turns of the coil did...
15. ### hypothesis of magnetic particles

hi i'm on here because I need help with a hypothesis on mine The hypothesis is that everything is a magnet or electromagnet and is traveling about in different ways now I believe it is a pyramid shaped magnet that wouldn't be able to join with other magnets as it would tilt and the bases would...
16. ### Loop of wire falling out of a magnetic field.

I am struggling on finding the time it takes the loop of wire to completely leave the field in part a. I have found the differential equation of motion to me dv/dt+at=g where a is a constant determined to be a=826.72. I found the solution of the DE to be v(t)=g/a(1-e^(-at)) I have tried...
17. ### Magnetic flux density and temperature

Hello everyone! I am new in the forum; and I am currently studying physics at the high school level. I have a little problem... and I would greatly appreciate any help that you could provide me; The thing is; I have to do an investigation on the relationship between magnetic flux density...
18. ### Magnetic flux density and susceptibility

What is the relation between magnetic suscptibility and magnetic flux density. How can I know how much gauss I will need to attarct a mineral/oxide of given magnetic suscptibilty ?
19. ### How can I measure high magnetic fields?

Hello! I've made a lot of research about measurement of high magnetic fields - such us 1T - 2T and I can't find sensors for this range. I'm looking for a hall sensor with which I will be able to measure 1T magnetic field with good accuracy - about 0.1 mT. Do you know about anything like that...
20. ### Magnetic Susceptibility Question?

Hi guys, If anyone can help me out with the following question I would be absolutely wrapped!!! The magnetic susceptibility of lets say a paramagnetic material placed within a magnetic field is given as follows: X=Bi/Bo, where, X is the magnetic susceptibility of the material...