A Conducting Ring Is Placed Such That It Is Lying

question 13

Multiple Choice

A conducting ring is placed such that it is lying flat in the xy-plane. A magnetic field exists in the +z direction, and its strength is decreasing with time. Which of the following occurs?

• A) No current is induced in the ring.
• B) A current is induced, in the counter-clockwise direction, as viewed from above the xy-plane.
• C) The situation is unclear because we do not know the initial conditions.
• D) A current is induced, in the clockwise direction as viewed from above the xy-plane.

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Definitions:

Interest Expense

The cost incurred by an entity for borrowed funds, typically reported on the income statement.

Compounded Annually

Interest on an investment or loan that is calculated once a year, adding to the principal sum for the next year.

Present Value

The present-day worth of money to be received in the future or ongoing cash flows, discounted by a specific rate of return.

Single Sum

A lump-sum amount of money taken in a single payment rather than in installments over time.