A Conducting Rod with a Length ℓ = 25 Cm $\vec { B }$

question 47

Multiple Choice

A conducting rod with a length ℓ = 25 cm is placed on a U-shaped metal wire that is connected to a lightbulb having a resistance of 8.0 Ω as shown in the figure.The wire and the rod are in the plane of the page.A constant uniform $\vec { B }$ field of 0.40 T in magnitude is applied perpendicular to and into the paper.An external applied force moves the rod to the right with a constant speed of 6.0 m/s.What are the magnitude and direction of the induced current in the circuit?

• A)17 mA clockwise
• B)17 mA counterclockwise
• C)75 mA counterclockwise
• D)75 mA clockwise
• E)52 mA clockwise

---

Definitions:

Defensiveness

A psychological reaction that occurs in response to a perceived threat, characterized by a protective behavior aimed to defend oneself from criticism or harm.

Substitutability

The degree to which one product or service can be replaced with another to satisfy the same need or want.

David McClelland

A psychologist known for his work on motivation theory, which includes the need for achievement, the need for affiliation, and the need for power.

Strategic Contingencies

A concept in organizational theory that emphasizes the importance of adaptable strategies in response to changing environmental conditions.