Sapling Learning macmillan learning Determine the direction of the magnetic fiel

Question

Sapling Learning macmillan learning 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 into 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. right down up out of screen into screen no field left Next, consider a circular loop of wire carrying a counter clockwise current as shown below. Indicate the direction of the magnetic field at points both inside and outside of the loop.

Explanation / Answer

1.According to the right hand rule, the direction of magnetic field due to current carrying wire into the screen is always clockwise.

Thus the direction of magnetic field at a point below the wire is left and a point to the right of wire is down.

2.the direction of magnetic field due to current carrying circular loop depends on the direction of current.

The direction of magnetic field inside the loop is into the screen and outside the loop is out of screen.

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