A 400-Turn Circular Coil (Radius = 1

question 21

Multiple Choice

A 400-turn circular coil (radius = 1.0 cm) is oriented with its plane perpendicular to a uniform magnetic field which has a magnitude that varies sinusoidally with a frequency of 90 Hz. If the maximum value of the induced emf in the coil is observed to be 4.2 V, what is the maximum value of the magnitude of the varying magnetic field?

• A) 59 mT
• B) 62 mT
• C) 65 mT
• D) 68 mT
• E) 31 mT

---

Definitions:

Signal Activation

The process of initiating or triggering a response through a specific signal, often used in the context of communication or biological systems.

Openness To Experience

A personality trait that features the willingness to engage in new experiences, creativity, and a broad range of interests.

Brain Activity

The electrical and chemical processes in the brain that allow for thought, perception, emotion, and movement.

Neuroticism

A personality trait characterized by tendencies toward anxiety, moodiness, worry, and emotional instability.