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 current as shown below. Indicate the direction of the magnetic field at points both inside and outside of the loop.

Explanation / Answer

a) It will be right for point below the wire and up for point to the right using right hand thimb rule.

b) Inside = into screen

Outside = out of screen

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