A long wire stretches along the x axis and carries a 2.0 A current to the right

Question

A long wire stretches along the x axis and carries a 2.0 A current to the right (+x). The wire is in a uniform magnetic field B =(0.21i0.30j+0.30k)T.

Part A

Determine the x-component of the force on the wire per cm of length.

Express your answers using two significant figures.

Part B

Determine the y-component of the force on the wire per cm of length.

Express your answers using two significant figures.

Part C

Determine the z-component of the force on the wire per cm of length.

Express your answers using two significant figures.

Explanation / Answer

B = 0.2 i -0.3 j + 0.3 k

F = i*L XB

F /L = 2* ( i) X ( 0.2 i -0.3 j + 0.3 k ) = - 0.6 k - 0.6 j

so

Fx = 0

Fy = -0.6 /100 = - 0.006 N/cm

Fz =   - 0.006 N/cm

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