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The resistance of a given sample of copper of diameter 0.1 mm and length 0.2 m is 0.439. Calculate its resistivity and conductivity. The
The resistance of a given sample of copper of diameter 0.1 mm and length 0.2 m is 0.439. Calculate its resistivity and conductivity. The electrical resistivity of iron increases by a factor of 6, on alloying with 4% Si. Show that the eddy current losses for this change in composition is 83%
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Cambridge International AS And A Level Physics Coursebook
Authors: David Sang, Graham Jones, Gurinder Chadha, Richard Woodside
3rd Edition
1108859038, 978-1108859035
