Recent content by james11223

  1. J

    Direction of force on a charged particle in a magnetic field

    gneill, this is an elementary question, the answer is into the paper!
  2. J

    Direction of force on a charged particle in a magnetic field

    HAHAHA yes I get it now, thanks so much! So to confirm... the answer is downwards correct?
  3. J

    Direction of force on a charged particle in a magnetic field

    Oh wow I LOVE SKINS <333 but is the force down into the paper or just in the downwards direction? As this is only to clarify and not giving me the answer outright
  4. J

    Direction of force on a charged particle in a magnetic field

    Okay... I think I'm understnading. Is the general consensus that the force is downwards into the paper?
  5. J

    Direction of force on a charged particle in a magnetic field

    I seriously do not understand, I think I'd get it for the next problems if you just gave me the answer for this one so that I could use the same method for the others. I am self-studying this course and I seriously cannot explain this one, can you please at least guide me through it but give me...
  6. J

    Direction of force on a charged particle in a magnetic field

    but since when is there a magnetic field? I thougt there was just a current going counterclockwise?
  7. J

    Direction of force on a charged particle in a magnetic field

    OHH! so how would you do it in this case?? would your thumb align with the positive charge??, but then what else would you do..
  8. J

    Direction of force on a charged particle in a magnetic field

    Dont the field lines go into the page? Because the symbol is a + inside of circle, so wouldn't that mean they go into the page?
  9. J

    Direction of force on a charged particle in a magnetic field

    Okay, but how would you determine where the force is?
  10. J

    Why Does the Voltage at Point B Measure 30V?

    So in my understanding the current is flowing clockwise... is that a correct assumption?
  11. J

    Why Does the Voltage at Point B Measure 30V?

    Homework Statement Show that the voltage drops over the circuit is 0. What is the voltage at B? Homework Equations I = E/Req The Attempt at a Solution 120V/120ohms = 1 A 120V - (80*1) - (10*1)- (30*1) = 0 120 - 80 - 10 = 30V at B I have nooo idea about the B part... can...
  12. J

    Direction of force on a charged particle in a magnetic field

    Oh okay! 3) To right 4) That is a "q". But I still really do not understand how you would do this one. I get that your thumb follow the arrow above the V and then your four fingers go into the paper. Thus the way my palm is facing shows that the force would be upwards. But would that be...
  13. J

    Direction of force on a charged particle in a magnetic field

    Okay so my final answer is: 1) Upward 2) Out of the paper 3) Upward 4) I HAVE NO IDEA! can someone please help me with 4 and verify my other answers? thanks
  14. J

    Direction of force on a charged particle in a magnetic field

    Ohhh oops.. I got those backwards... would the frist one be going up? and the second one coming towards me?