A non-mechanical water meter could utilize the Hall effect by applying a magnetic field across a metal

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A non-mechanical water meter could utilize the Hall effect by applying a magnetic field across a metal pipe and measuring the Hall voltage produced. What is the average fluid velocity in a 3.00-cm-diameter pipe, if a 0.500-T field across it creates a 60.0-mV Hall voltage?

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Cambridge International AS And A Level Physics Coursebook

ISBN: 9781108859035

3rd Edition

Authors: David Sang, Graham Jones, Gurinder Chadha, Richard Woodside

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