A 12-Kg Rod That Has a Length of 1

question 21

Multiple Choice

A 1.2-kg rod that has a length of 1.0 m and a resistance of 5.0 slides with constant speed down a pair of frictionless vertical conducting rails that are joined at the bottom.Other than the rod,the rest of the circuit is resistanceless.A uniform magnetic field of magnitude 3.0 T is perpendicular to the plane formed by the rod and the rails as shown.Determine the speed of the rod.

• A)0.38 m/s
• B)0.90 m/s
• C)2.6 m/s
• D)6.5 m/s
• E)8.7 m/s

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Definitions:

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Strategies or maneuvers used to twist or manipulate information, perceptions, or facts, often to achieve personal or organizational objectives.

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The act of communicating false information with the intent to deceive.

Continuum

A continuous sequence in which adjacent elements do not vary significantly from each other but the extremes are quite distinct.

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Informative feedback provided with the intent of improving performance by identifying mistakes and suggesting improvements.