Why does the quadrant choice for dq affect the solution signs in problem 22?

pyroknife · Sep 17, 2011

Homework Statement

http://kellykemnitz.com/college/Spring 2011/PHYS 214/PhysicsSolution/Chap 22 SM.pdf
Problem #22
They chose dq to be in the 1st quadrant, what if I chose dq in any of the other quadrants? Wouldn't that be right also? But that would change the signs of the answer.

Delphi51 · Sep 17, 2011

Yes, you should be able to draw the diagram in any quadrant. But you will still integrate from 0 to 2 pi (around the whole circle), so you'll get the same answer.

Why does the quadrant choice for dq affect the solution signs in problem 22?

Homework Statement

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