11-4-2014 Magnetic fields and forces

This shows that no matter what, there is always two ends to a magnetic pole. They exist only in their relativity. if there is not a north pole then there is no south pole, but in a magnet they can never be removed or seperated.

This is metal fillings reacting to the magnetic field. showing that polarizing effects of the bar. mind blown.

just like electric fields, magnetic fields work in a similiar fashion.

electric fields have electric charge and electric flux.
magnetic fields have magnetic charge and magnetic flux
their relationship is circular.

this shows that the force created by a magnetic field and a current is a cross product. The force is therefor perpendicular and in the direction in accordance to the right hand rule, by pointing your hand in the direction of the magnetic field and then curling it in the direction of the drift velocity.

an example calculation, and an attempt to make an addition to the right hand rule, or possibly the left hand rule. no one knows anymore. this has become a dark place.

This shows that the magnetic field does not to any work on the already moving particles by creating the force. The cosine of phi is zero.

This is a microwave emitter, i dont remember why we got it out. oh wait i remember i think. it accelerates particles. by applying the magnetic field and the current, i think. anyways this thing is pretty awesome.

• Since the magnetic force always acts at right angles to the charges motion, the magnetic force can do no work on the charge. The B-field cannot speed up or slow down a moving charge; it can only change the direction in which the charge is moving.
• The general path of a moving charge in a constant magnetic field is that of a helix with its axis parallel to the direction of the magnetic field.
• If you stand in such a way that you are looking directly into the oncoming magnetic field, the a positively charged particle will be seen to rotate in clockwise circle where as a negatively charged particle will rotate in counterclockwise circle.

• The component of velocity of the charged particle that is parallel to the magnetic field is unaffected, i.e. the charge moves at a constant speed along the direction of the magnetic field.
• If the particle has a component of velocity parallel to the magnetic field, then its circlular motion will drift at a constant speed (equal to that of its parallel-velocity component, v_ll) along the magnetic field producing an overall helical motion. 

This video shows the effect of the currant and the magnetic field, and the cross product being the force in the upward position. 

If the current is changed or the magentic field is changed then the force is changed. Never cross the fields.

This is showing how a magnetic field going through a ring perpendicular would have no force on the system because it would cancel out, but if it is done at an angle, it could create a torque. which could be used to make a motor.

this chart shows the change in the force created by a magnetic field moving through a semi circle. At the zero and pi radians it is zero because the forces are either opposing each other or they are parallel. as well the sum of these is an approximation of the total force created by the current and the magnetic field.