A Bar Magnet Is Falling Through a Loop of Wire

question 49

Multiple Choice

A bar magnet is falling through a loop of wire with constant velocity. The south pole enters first. As the magnet leaves the wire, the induced current (as viewed from above) :

• A) is along the length of the magnet.
• B) is clockwise.
• C) is counterclockwise.
• D) is zero.

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Definitions:

Sum

An aggregate function that calculates the total sum of a numeric column in a database table.

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Triggers in form controls, such as buttons or text fields, that execute specified actions or code when certain conditions are met.

Command Button

A graphical control element in software that performs a specific action or command when clicked by the user.

Command Button

A button in a graphical user interface that, when clicked, sends a command to the software to perform a specific task.