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What Is the Cause of a Magnetic Field About a Permanent

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What is the cause of a magnetic field about a permanent magnet and about a current-carrying wire?


Definitions:

Standard Deviation

A measure of the amount of variation or dispersion in a set of values.

Confidence Interval

A range of data figures, acquired from sample analysis, predicted to include the value of an unacknowledged population characteristic.

Confidence Interval

A range of values, derived from sample statistics, that is believed to contain the true value of a population parameter with a specified level of confidence.

Population Proportion

The fraction or percentage of members in a population that exhibit a particular trait or characteristic.

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