If You Drop a Bar Magnet in a Vertical Copper

question 67

Multiple Choice

If you drop a bar magnet in a vertical copper pipe it will fall slowly because

• A)of air resistance.
• B)it induces a magnetic field in the pipe that resists motion of the magnet.
• C)the copper is a good conductor of both electricity and magnetism.
• D)of electron repulsion.

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Acquired Immunodeficiency Syndrome, a life-threatening condition caused by the Human Immunodeficiency Virus (HIV), characterized by the progressive failure of the immune system.

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HIV

Human Immunodeficiency Virus, a virus that attacks the immune system and can lead to AIDS if not treated.