A Metal Ring Is Dropped from Rest Below a Bar

question 33

Multiple Choice

A metal ring is dropped from rest below a bar magnet that is fixed in position as suggested in the figure.An observer views the ring from below.Which one of the following statements concerning this situation is true?

• A)As the ring falls,an induced current will flow counterclockwise as viewed by the observer.
• B)As the ring falls,an induced current will flow clockwise as viewed by the observer.
• C)As the ring falls,there will be an induced magnetic field around the ring that appears counterclockwise as viewed by the observer.
• D)As the ring falls,there will be an induced magnetic field around the ring that appears clockwise as viewed by the observer.
• E)Since the magnet is stationary,there will be no induced current in the ring.

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Definitions:

Optimal Solution

The most efficient and effective answer to a problem, typically found through systematic analysis or computation, that maximizes or minimizes desired factors.

Transportation Problem

A type of optimization issue in operations research that involves finding the most efficient way to distribute goods from several suppliers to several consumers.

Improvement Index

A metric or measure used to gauge the level of performance enhancement or progress in a given area or system over a period.

Minimization Problem

A type of optimization problem focused on finding the lowest value of a function within a given set of constraints.