Problem on the magnetic force on a wire

[electrohau5]

Homework Statement

A wire 42.1 cm long carries a 0.660 A current in the positive direction of an x-axis through a magnetic field with an x component of zero, a y component of 0.000330 T, and a z component of 0.00840 T. Find the (a) x, (b) y, and (c) z components of the magnetic force on the wire.

Homework Equations

Force on a wire:
F=i*(crossP(L,B))

The Attempt at a Solution

Seems simple, but I am getting a wrong answer.

a. 0 (this is correct)
b and c. 0.660*(crossP({0.66,0,0}, {0,0.000330,0.00840})={0,-0.00365904,1.43748E-4}

and niether -0.00365904 (y component, part b),
nor 1.43748E-4 (z component, part c)

are correct.

 

[TSny]

F=i*(crossP(L,B))

0.660*(crossP({0.66,0,0}, {0,0.000330,0.00840})={0,-0.00365904,1.43748E-4}

Check the number that you used for the length of the wire.

 

[rude man]

Do your cross-products again. Show us the details thereof. (Set up the customary determinant rather than your more obscure notation).

EDIT: follow TSny's advice! I hadn't noticed that you omitted the length.

 

[electrohau5]

Check the number that you used for the length of the wire.

Thanks! I did not see that one!

 

[Nickie]

I would suggest double checking your calculations and making sure all units are consistent. It is also important to consider the direction of the magnetic field and the direction of the current in relation to the x-axis. Additionally, you may want to check if the cross product operation was performed correctly. If you are still unable to find the correct answer, it may be helpful to seek assistance from a colleague or refer to a trusted resource for guidance.