The Area of a Rectangular Loop of Wire Is 3 $10 ^{- 3}$

question 139

Multiple Choice

The area of a rectangular loop of wire is 3.6 × $10 ^{- 3}$ $m ^ { 2 }$ . The loop is placed in a uniform magnetic field that changes steadily from 0.20 T to 1.4 T in 1.6 s. The plane of the loop is perpendicular to the direction of the magnetic field. What is the magnitude of the induced emf in that loop?

• A) 2.8 × \(10 ^{- 3}\) V
• B) 2.7 × \(10 ^{- 3}\) V
• C) 0 V
• D) 1.8 × \(10 ^{- 3}\) V
• E) 3.0 × \(10^{ - 3}\) V

---

Definitions:

Diseconomies of Scale

A situation in which a company or business grows so large that the costs per unit increase, leading to decreased efficiency.

Large-Scale Business

A business that operates on a large scale, often involving extensive operations, significant capital, numerous employees, and a wide geographical reach.

Law of Diminishing Returns

A principle stating that if one factor of production is increased while others remain constant, the overall returns will eventually decrease after a certain point.

Marginal Cost Curves

Graphs that show how the cost of producing one additional unit changes as the production volume increases.