A Circular Coil Has 275 Turns and a Radius of 0.045

question 14

Multiple Choice

A circular coil has 275 turns and a radius of 0.045 m. The coil is used as an ac generator by rotating it in a 0.500 T magnetic field, as shown in the figure. At what angular speed should the coil be rotated so that the maximum emf is 175 V?

• A)28 rad/s
• B)50 rad/s
• C)130 rad/s
• D)200 rad/s
• E)490 rad/s

---

Definitions:

Compounded Semi-Annually

A method where interest is added to the principal balance of an investment or loan twice a year, leading to compound growth.

Trust Fund

A legal entity that holds and manages assets on behalf of another, guided by the terms set forth in a trust agreement.

Monthly Payments

Regular payments made monthly towards loans, mortgages, or other long-term financial obligations.

Compounded Quarterly

This pertains to the calculation of interest on the principal amount and previously accumulated interest four times a year.