Where is the magnetic field of a bar magnet strongest?

a) Outside the magnet, near the north pole of the magnet.

b) Outside the magnet, near the south pole of the magnet.

c) Beside the magnet.

d) Inside the magnet.

What does it mean to say that a bar magnet is pointing eastward?

a) The bar magnet is aligned west to east with the west end being the south pole of the magnet and the east end being the north pole of the bar magnet.

b) The bar magnet is aligned west to east with the west end being the north pole of the magnet and the east end being the south pole of the bar magnet.

c) A bar magnet never points eastward. By definition, a bar magnet always points northward.

d) None of the above.

A current flows northeastward in a horizontal wire in a downward directed magnetic field. What is the direction of the magnetic field due to the wire at a point that is at the same elevation of the wire and is southeast of the wire?

a) Northwardb) Southwardc) Eastwardd) Westwarde) Northeastward

f) Southeastwardg) Southwestwardh) Upwardi) Downwardj) None of the above.

a) Northwardb) Southwardc) Eastwardd) Westwarde) Northeastward

f) Southeastwardg) Southwestwardh) Upwardi) Downwardj) None of the above.

What is the direction of the force, if any, on a positively charged particle that has a northward velocity and is just east of (and at the same elevation as) a straight horizontal wire which is carrying a northward current?

a) Northwardb) Southwardc) Eastwardd) Westwarde) Northeastward

f) Southeastwardg) Southwestwardh) Upwardi) Downwardj) None of the above.

What is the direction of the magnetic field, if any, at the center of a horizontal loop carrying a current which is counterclockwise as viewed from above?

a) Northwardb) Southwardc) Eastwardd) Westwarde) Northeastward

f) Southeastwardg) Southwestwardh) Upwardi) Downwardj) None of the above.

What is the direction of the force, if any, on a negatively charged particle that has a westward velocity and is at the center of a horizontal loop carrying a current which is counterclockwise as viewed from above?

a) Northwardb) Southwardc) Eastwardd) Westwarde) Northeastward

f) Southeastwardg) Southwestwardh) Upwardi) Downwardj) None of the above.

What is the direction of the force, if any, on a negatively charged particle that has a westward velocity and is directly above a vertical bar magnet aligned north pole down?

a) Northwardb) Southwardc) Eastwardd) Westwarde) Northeastward

f) Southeastwardg) Southwestwardh) Upwardi) Downwardj) None of the above.

What is the direction of the force, if any, on a positively charged particle that has an upward velocity and is due east of the center of, and outside of, a vertical bar magnet aligned north pole up?

a) Northwardb) Southwardc) Eastwardd) Westwarde) Northeastward

f) Southeastwardg) Southwestwardh) Upwardi) Downwardj) None of the above.

What is the direction of the force, if any, on a positively charged particle that has a southward velocity and is due east of the center of, and outside of, a vertical bar magnet aligned north pole up?