Ampere's law:

$\overline{){\mathbf{\oint}}{\mathbf{B}}{\mathbf{\xb7}}{\mathbf{d}}{\mathbf{s}}{\mathbf{=}}{{\mathbf{\mu}}}_{{\mathbf{0}}}{{\mathbf{I}}}_{\mathbf{e}\mathbf{n}\mathbf{c}\mathbf{l}\mathbf{o}\mathbf{s}\mathbf{e}\mathbf{d}}}$, where permeability, μ_{0} = 4π × 10^{-7} H/m

**(a)**

We use the right-hand rule to determine the direction of the current, I_{3}.

The magnetic field is moving in a clockwise direction around the loop.

The value of the line integral around the closed path in the figure is 1.70×10^{−5} Tm .

a. What is the direction (in or out of the page) of I_{3}?

b. What is the magnitude of I_{3}?

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