A Flat Circular Loop of Wire of Radius 0 $\vec { B }$

question 67

Multiple Choice

A flat circular loop of wire of radius 0.50 m that is carrying a 2.0-A current is in a uniform magnetic field of 0.30 T.What is the magnitude of the magnetic torque exerted on the loop when the plane of its area is perpendicular to the $\vec { B }$ field?

• A)0.00 N ∙ m
• B)0.41 N ∙ m
• C)0.47 N ∙ m
• D)0.52 N ∙ m
• E)0.58 N ∙ m

---

Definitions:

Positive Reinforcement

A technique in behavior modification that involves rewarding desirable behaviors, thereby increasing the likelihood of their recurrence.

Variable Interval Schedule

A reinforcement schedule where rewards are provided after an unpredictable time interval, leading to more consistent behavior.

Fixed Interval Schedule

A type of reinforcement schedule in operant conditioning where the first response after a fixed time period is rewarded.

Variable Ratio Schedule

A reinforcement schedule in which a response is rewarded after an unpredictable number of responses, promoting high and stable rates of the response.