Determine the direction of the magnetic field produced at the labeled positions

Question

Determine the direction of the magnetic field produced at the labeled positions in the following situations. Shown below is a cross-sectional view of a straight wire oriented perpendicular to the screen, carrying a current out of the screen. Indicate the direction of the magnetic field at a point below the wire, and at a point to the right of the wire. Next, consider a circular loop of wire carrying a clockwise currents as shown below. Indicate the direction of the magnetic field at points both inside and outside of the loop.

Explanation / Answer

Answer:

(1) Field direction is towards right at a point below the wire

(2) Field direction is towards up at a point right of the wire

(3) Into the screen inside the loop

(4) No field outside the loop

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