Physics 432 Name
Magnetism
1. (Regular) Current in a wire flows from left to right. The magnetic field is pointed into the page. What is the direction of the force?
Up (Towards the top of the page)
2. Electrons move north (towards the top of the page) through a wire. Determine the direction of the magnetic field on the left side of the wire.
Into the page
3. Conventional (plus to minus) current is forced northwards (top of the page) due to a magnetic field pointing east (right). In which direction is the current flow?
Out of the page
4. A coil is wound in the following fashion:
determine the direction of the current that would produce this field.
Current goes from the right end of the coil to the left end.
5. While orienteering in the forest, you stumble across a pot of gold. As you haul it away, an angry Leprechaun jumps out and shoots you with a magic beam .
The beam is comprised of electrons with a charge of 1 x 10 -19 C traveling with a velocity of 1000m/s. Luckily you have your trusty compass magnet can produce a field of 1.5 Teslas (it's a really GOOD compass).a. On the diagram below show how you must orient the field in order to deflect the beam to your left. (You must think 3-D).
The field must be out of the page
b. How strong is the force you exert on the beam particles?
Out of the page
b. In the diagram above, the wire feels a force of 2 Netwons when the current is 8 Amps and 0.4 meters of the wire are in the field. What is the size of the magnetic field?
