ch30-p078 - 78. In absolute value, Faradays law (for a...

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78. In absolute value, Faraday’s law (for a single turn, with B changing in time) gives 2 () B d dBA dB AR dt dt dt dt π Φ == = for the magnitude of the induced emf. Dividing it by R 2 then allows us to relate this to the slope of the graph in Fig. 30-75(b) [particularly the first part of the graph], which we estimate to be 80 µ V/m 2 . (a) Thus, dB 1 dt = (80 µ V/m 2 )/ π 25 µ T/s . (b) Similar reasoning for region 2 (corresponding to the slope of the second part of the
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This note was uploaded on 06/03/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.

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