A Square Coil of Wire with Side 8

question 29

Multiple Choice

A square coil of wire with side 8.0 cm and 50 turns sits in a uniform magnetic field that is perpendicular to the plane of the coil. The coil is pulled quickly out of the magnetic field in 0.2 s. If the resistance of the coil is 15 ohm and a current of 12 mA is induced in the coil, calculate the value of the magnetic field.

• A) 5.6 T
• B) 0.11 T
• C) 7.5 × 10^-3 T
• D) 1.4 T
• E) 9.1 T

---

Definitions:

Theories

Systematic ideas or sets of principles intended to explain phenomena based on general concepts.

Reductionist

An approach in science and philosophy that breaks complex phenomena down into their most basic parts, often with the aim of simplifying understanding.

Holistic

An approach that considers the whole system, including physical, mental, social, and spiritual aspects, rather than focusing on individual parts.

Mechanical

Pertaining to or involving machines or mechanical forces, often related to the physical aspects of objects and processes.