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Consider the long, straight, current-carrying wires shown below. One wire carrie

ID: 1363844 • Letter: C

Question

Consider the long, straight, current-carrying wires shown below. One wire carries a current of 9.9 A in the + y direction; the other wire carries a current of 4.5 A in the positive x direction.

(a) Conceptually: At which of the two labelled points do you expect the magnitude of the net magnetic field to be greater?
---Select one---   A              B              same at A & B

(b) Calculate: What is the net magnetic field at each of these points?
(Do your answers match your predictions from part a?)

at point A:
size: in    T

dir: ---Select one---          +x dir         -x dir         +y dir       -y dir      into page      out of page      N/A - field is zero

at point B:
size: in T

dir: ---Select in---+x dir          -x dir         +y dir        -y dir       into page       out of page          N/A - field is zero

(c) What force would be felt by a proton placed at point B at rest?
size: in N

dir: ---Select one---         +x dir          -x dir        +y dir       -y dir        into page      out of page   N/A - force is zero

(d) What force would be felt by a proton when passing through point A at 25 m/s in the +y dir?
size: in N

dir: ---Select one---       +x dir     -x dir     +y dir     -y dir     into page      out of page        N/A - force is zero

Explanation / Answer

Consider the long, straight, current-carrying wires shown below. One wire carrie