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.

---

Definitions:

Profit

The financial gain achieved when the amount of revenue gained from a business activity exceeds the expenses, costs, and taxes needed to sustain the activity.

Game Theory

The study of behavior in situations of interdependence. Used to explain the behavior of an oligopoly.

Dominant Strategies

In game theory, strategies that are best for a player, regardless of the strategies chosen by other players.

Payoff Matrix

In game theory, a diagram that shows how the payoffs to each of the participants in a two-player game depend on the actions of both; a tool in analyzing interdependence.