A Conducting Rod Whose Length Is ℓ = 1 $\vec { B }$

question 67

Multiple Choice

A conducting rod whose length is ℓ = 1.60 m is placed on frictionless U-shaped metal rails that is connected to a lightbulb having a resistance of 4.00 Ω as shown in the figure.The rails and the rod are in the plane of the page.A constant uniform $\vec { B }$ field 2.20 T in magnitude is applied perpendicular to and out of the paper.An external force exerted on the rod moves the rod to the right with a constant speed of 6.00 m/s.At what rate is electric energy converted into internal energy in the lightbulb?

• A)60.0 W
• B)121 W
• C)21.2 W
• D)112 W
• E)11.5 W

---

Definitions:

Aversive Conditioning

A form of behavior modification that involves the use of negative stimuli to reduce or eliminate undesired behaviors.

Nail Biting

A habitual behavior involving biting one's nails, often triggered by anxiety or boredom.

Maladaptive Behaviors

Actions or tendencies that hinder adjustment to situations, environments, or interpersonal issues, resulting in dysfunctional or non-productive outcomes.

Learning

Any relatively permanent change in behavior brought about by experience or practice.