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Physics 2212 GPS 9
Problem # An electron and a proton, with charges →e and e respectively, are moving with the same speed v in di!erent directions as indicated in the diagram. At a particular instant in time, the proton is located at a distance d directly above the electron. At this instant, the velocity of the electron points in the positive x axis and the velocity of the proton points in the negative x axis. A. What is the direction of the magnetic field due to the electron at the location of the proton? B. What is the direction of the magnetic field due to the proton at the location of the electron?
C. Determine the magnitude and direction of the magnetic force on the proton. D. Determine the magnitude and direction of the magnetic force on the electron. x y z -quo o
B
xyz 8 aud o
o ab
f= - ) F
Problem # A long wire carries a current I 1 up- ward, and a rectangular loop of height h and width w carries a current I 2 clockwise as seen in the diagram. The loop is a distance d away from the long wire. The long wire and the rectangu- lar loop are in the same plane. Calculate the magnitude and direction of the net magnetic force exerted by the long wire on the rectangular loop.
I
X 2
d+^ w
X Burea =^ Un Burr =^ En( Wirel = Fittal^ , (^0) , 02 I
Fret=^ F,
Ea
T Hire 2 =^ F: Em ,^0 , 1
