Which of the following is an accurate statement? a. The magnetic force on a movi

Question

Which of the following is an accurate statement?

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

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

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

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

e. 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.

Explanation / Answer

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

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