Wednesday Homework Problem 8.7 A wire carrying cur- rent out of the page runs be

Question

Wednesday Homework Problem 8.7 A wire carrying cur- rent out of the page runs between the poles of the permanent horseshoe-like magnet as shown to the right. It is made of two strong magnets connected by metal (the gray material) that pro- vides the flux return path. What is the direction of the force on the wire North Select One of the Following (a) to the top of the page (b) to the bottom of the page (c) to the left of the page (d) to the right of the page (e) into the page (f) out of the page (g) The force is zero. South

Explanation / Answer

The magnetic lines of force are directed away from a north pole and are directed towards a south pole. That is the magnetic field is in downward direction.

From right hand rule, the thumb is along current direction, the point finger is along magnetic field direction, and then the curled fingers give the magnetic force direction (towards right of the page).

The correct option is (d) to the right of the page.

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