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

question 208

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 and the coil are now both raised
Upward with the same velocities. 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:

Discount Rate

In discounted cash flow analysis, the Discount Rate refers to the interest rate employed to ascertain the present value of future cash flows.

Future Cash Flows

Future cash flows refer to the estimated amounts of money to be received or paid by a business in the future, often used in investment analysis and valuation.

Present Value

The immediate monetary value of a future sum of money or cash flow sequences, utilizing a known rate of return for calculation.

Excel

A spreadsheet program created by Microsoft that allows users to organize, format, and calculate data with formulas using a system of cells arranged in rows and columns.