Along wire lying along the x-axis carries a current of 3.40 a in the +x direction. there is a uniform magnetic field present, given by b=0.003i + 0.004j + 0.002k, where i, j, k are the unit vectors along the cartesian coordinate axes') in units of tesla. calculate the y-component of the magnetic force acting on a segment of wire of length l = 21.5 cm.

Explanation:

 Expression for magnetic force

F = L ( I X B )

B magnetic field and I is current

Here I = 3.4 i

B = .003i + .004 j + .002 k

F = 21.5 X 10⁻² x 3.4 i X ( .003i + .004 j + .002 k )

=( .2924 k - .1462 j )x 10⁻²

so y component of magnetic force = - 0.1462  x 10⁻² N

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