Which of the following statements describes a true observation that represents strong physical evidence that magnetic poles are not the same as electric charges? Select all answers that are both physically true and represent relevant evidence. (To select multiple answers using the back of the book, point to answers with multiple fingers.)
A. We describe magnetic poles as being north and south but charges as being positive or negative.
B. A magnet does not exert force on a motionless charged particle, but another charged particle will.
C. A magnet exerts force in a different direction on a motionless charged particle than a charged particle does.
D. Magnetic fields are measured in teslas, but electric fields are measured in N/C.
E. No one has seen an isolated magnetic pole.
F. What do you mean? At the deepest level, electric charges and magnetic poles really are the same thing!
B. A magnet does not exert force on a motionless charged particle, but another charged particle will.
E. No one has seen an isolated magnetic pole.
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