Which of the following is an accurate statement? a.) Magnetic field lines have a

Question

Which of the following is an accurate statement?

a.) Magnetic field lines have as their sources north and south poles.

b.) A magnetic field line is, by definition, tangent to the direction of the magnetic force on a moving charge at a given point in space.

c.) A current carrying loop of wire tends to line up with its plane parallel to an external magnetic field in which it is positioned.

d.) The magnetic force on a current carrying wire is greatest when the wire is parallel to the magnetic field.

e.) The magnetic force on a moving charge does not change its energy.

Explanation / Answer

E) The magnetic force on a moving charge does not change its energy.

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