An Electromagnetic Flowmeter Is Useful When It Is Desirable Not $v$

question 110

Multiple Choice

An electromagnetic flowmeter is useful when it is desirable not to interrupt the system in which the fluid is flowing (such as the blood in an artery during heart surgery) . Such a device is illustrated in the figure. The conducting fluid moves with speed $v$ in a tube of diameter $d$ . Perpendicular to this tube is a magnetic field B. A voltage $V$ is induced between opposite sides of the tube due to the motion of the conducting fluid in the magnetic field. For a certain case, $B =$ $0.120 \mathrm {~T} , d = 1.2 \mathrm {~cm}$ , and the measured voltage is $V = 2.88 \mathrm { mV }$ . Determine the speed of the fluid.

• A) \(11 \mathrm {~m} / \mathrm { s }\)
• B) \(750 \mathrm {~m} / \mathrm { s }\)
• C) \(0.075 \mathrm {~m} / \mathrm { s }\)
• D) \(1.1 \mathrm {~m} / \mathrm { s }\)
• E) \(2.0 \mathrm {~m} / \mathrm { s }\)

Understand the impact of federal policies on social program funding.

Know the origins and implications of key philanthropic texts and views.

Analyze the effects of commercialization on nonprofit missions.

Comprehend the different classifications and sectors within the nonprofit world.

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Definitions:

Nurture

The process by which environmental factors contribute to the growth and development of an individual.

Plato

An ancient Greek philosopher who laid the foundational elements of Western philosophy and science.

Intelligence

Represents the capacity for learning, reasoning, understanding, and similar forms of mental activity; aptitude in grasping truths, relationships, facts, meanings, etc.

Culture

The collective beliefs, customs, arts, and technologies of a social group or society that are transmitted across generations.