What is an Electromagnetic Wave? Video Lessons

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Problem: In what way are magnetic poles very different from electric charges?A. Electric charges always come in pairs (like heads and tails of a coin), whereas electric charges can occur by themselves in isolationB. Magnetic poles come in pairs (like heads and tails of a coin), whereas electric charges can occur by themselves in isolation.C. Magnetic poles require huge numbers of atoms in order to show magnetism, electric charges can occur by themselves in isolationD. Electric charges require huge numbers of atoms in order to show electrical effects, magnetic poles can appear by themselves in isolation

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Magnetic poles always exist in pairs like the two faces of a coin. 

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Problem Details

In what way are magnetic poles very different from electric charges?
A. Electric charges always come in pairs (like heads and tails of a coin), whereas electric charges can occur by themselves in isolation
B. Magnetic poles come in pairs (like heads and tails of a coin), whereas electric charges can occur by themselves in isolation.
C. Magnetic poles require huge numbers of atoms in order to show magnetism, electric charges can occur by themselves in isolation
D. Electric charges require huge numbers of atoms in order to show electrical effects, magnetic poles can appear by themselves in isolation

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