- #1
runphysicsrun
- 10
- 0
Four Wires form corners of a square. Force exerted by 3 of them on 1. Concept help!
side length "a"= 5.5 cm
current through wires "I" = 1.6A
"L" of lower right wire= 1 cm
upper and lower left currents are out of the page
upper and lower right currents are into the page
Problem Attached
My issue is with part b!
F=ILB
B=μ0I /2∏R
Vector diagrams based on right hand thumb rule
I've solved both parts of this problem. I solved the second part by creating vector diagrams and then applying Fx=ILB for the B's produced by the upper right and lower left wires. The lower left wire has a y-component as well so I multiplied by the cos (45). However, I'm having trouble comprehending why you can assume that the angle of the field vector by the lower left hand wire is exactly 45 degrees. Can anyone explain that to me?
Also appreciated would be if someone could draw the vector representations for part B (the forces of B acting on the wires), as I want to check my diagrams!
I have a cumulative exam next Monday, so help would be much appreciated!
Homework Statement
side length "a"= 5.5 cm
current through wires "I" = 1.6A
"L" of lower right wire= 1 cm
upper and lower left currents are out of the page
upper and lower right currents are into the page
Problem Attached
My issue is with part b!
Homework Equations
F=ILB
B=μ0I /2∏R
Vector diagrams based on right hand thumb rule
The Attempt at a Solution
I've solved both parts of this problem. I solved the second part by creating vector diagrams and then applying Fx=ILB for the B's produced by the upper right and lower left wires. The lower left wire has a y-component as well so I multiplied by the cos (45). However, I'm having trouble comprehending why you can assume that the angle of the field vector by the lower left hand wire is exactly 45 degrees. Can anyone explain that to me?
Also appreciated would be if someone could draw the vector representations for part B (the forces of B acting on the wires), as I want to check my diagrams!
I have a cumulative exam next Monday, so help would be much appreciated!
Attachments
Last edited: