The Figure Shows a Bar Magnet Moving Vertically Upward Toward

question 1356

Multiple Choice

The figure shows a bar magnet moving vertically upward toward a horizontal coil.The poles of the bar magnets are labeled X and Y.As the bar magnet approaches the coil it induces an electric current in the direction indicated on the figure (counter-clockwise as viewed from above) .What are the correct polarities of the magnet?

• A) X is a south pole, Y is a north pole.
• B) X is a north pole, Y is a south pole.
• C) Both X and Y are north poles.
• D) Both X and Y are south poles.
• E) The polarities of the magnet cannot be determined from the information given.

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Definitions:

Standard Error

A statistical term that measures the accuracy with which a sample distribution represents a population using standard deviation.

Sample Correlation

A measure that indicates the extent to which two variables change together in a sample dataset.

Bootstrap

A statistical method used for estimating the sampling distribution of an estimator by sampling with replacement from the original data.

Bootstrap Sample

A resampling technique used in statistics where repeated samples are drawn with replacement from an original dataset.