Oersted discovered that electric currents generate magnetic fields in a1600.

b1820.

c1980.

d2000.

When Oersted made the discovery in question 1, he was trying to demonstrate that

a. electricity and magnetism are not related.

b. electric currents create magnetic fields.

c. compasses can detect magnetic fields.

d. magnetic fields create electric currents.

The magnetic field created by current flowing through a wire

a. surrounds the wire in concentric circles.

b. is just like the magnetic field of a bar magnet.

c. has the same direction as the current.

d. has the opposite direction to the current.

According to the right hand rule, the fingers of the right hand curl around the wire in the same direction as the

a. current.

b. compass.

c. conductor.

d. magnetic field.

Factors that affect the magnetic field around a wire that is carrying current include

a. amount of current.

b. direction of current.

c. position of compass.

d. two of the above