A Square Loop (Length Along One Side = 20 Cm)

question 28

Multiple Choice

A square loop (length along one side = 20 cm) rotates in a constant magnetic field which has a magnitude of 2.0 T. At an instant when the angle between the field and the normal to the plane of the loop is equal to 20° and increasing at the rate of 10°/s, what is the magnitude of the induced emf in the loop?

• A) 13 mV
• B) 0.27 V
• C) 4.8 mV
• D) 14 mV
• E) 2.2 mV

---

Definitions:

Symbionts

The partners in a symbiotic relationship.

Secondary Succession

Secondary succession is the ecological process of change and development in an area where an ecosystem has been previously established but has then been disrupted.

Tropical Communities

Tropical communities refer to the ecosystems found in the equatorial regions characterized by high biodiversity, warm temperatures, and significant annual rainfall.

Food Chain

The series of organisms through which energy flows in an ecosystem. Each organism in the series eats or decomposes the preceding organism in the chain.