A Bar Magnet Is Held Vertically with Its Upper End

question 3

Multiple Choice

A bar magnet is held vertically with its upper end a little bit below the center of a horizontal metal ring. The upper end of the magnet is its north pole, as shown in the figure. The bar magnet is now dropped. An observer views the ring from above its center. To this observer, how will the induced current in the ring behave as the magnet falls?

• A) The current will flow clockwise and be increasing.
• B) The current will flow clockwise and be decreasing.
• C) The current will flow counter-clockwise and be increasing.
• D) The current will flow counter-clockwise and be decreasing.
• E) The induced current will be zero.

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Definitions:

Fixed Costs

Costs that do not change with the level of output or activity, such as rent or salaries.

Financial Advantage

A benefit gained in terms of monetary gains or improved financial position, often resulting from investments, operational efficiency, or strategic decisions.

Fixed Expenses

Costs that do not change with the level of production or sales activity, such as rent, salaries, and insurance.

Contribution Margin

The portion of sales income available to cover fixed expenses and contribute to net profit, after covering all variable expenses.