A Circular Coil of Copper Wire Is Lying Flat on a Horizontal

question 82

Multiple Choice

A circular coil of copper wire is lying flat on a horizontal table.A bar magnet is held above the center of the coil with its south pole downward.The magnet is released from rest and falls toward the coil.As viewed from above,what is the direction of the current induced in the coil as the magnet approaches the coil?

• A)counterclockwise
• B)clockwise
• C)No current is induced in the coil.
• D)An emf but no current is induced in the coil.

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Definitions:

Attraction

The force or influence that draws objects or individuals together.

Covalent Bond

A chemical bond formed by the sharing of one or more pairs of electrons between atoms in a molecule, contributing to the molecule's stability.

Ionic Bond

A chemical bond formed between two ions with opposite charges, typically between a metal and a nonmetal.

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Decrease in seawater pH caused by the rise in atmospheric carbon dioxide.