A Circular Loop of Wire of Radius 0

question 52

Multiple Choice

A circular loop of wire of radius 0.50 m is in a uniform magnetic field of 0.30 T. The current in the loop is 2.0 A. What is the magnetic torque when the plane of the loop is parallel to the magnetic field?

• A)zero
• B)0.41 m∙N
• C)0.47 m∙N
• D)0.52 m∙N
• E)0.59 m∙N

---

Definitions:

Extinction

In psychology, the process by which a previously reinforced response diminishes and eventually disappears when reinforcement is no longer provided.

Spontaneous Recovery

The reappearance of a previously extinguished conditioned response after a period of no exposure to the conditioned stimulus.

External Inhibition

The decrease in the strength or occurrence of a behavior due to an external stimulus or change in environmental conditions.

Stimulus Discrimination

The ability to distinguish between different stimuli or cues, especially in the context of learning and behavior.