problem29_29

problem29_29 - 29.29 a The induced electric field lines are...

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29.29: a) The induced electric field lines are concentric circles since they cause the current to flow in circles. b) ) s T 0350 . 0 ( 2 m 100 . 0 2 2 1 2 1 2 1 = = = Φ = = dt dB r dt dB A r dt d r r E B π π ε π , m V 10 75 . 1 3 - × = E in the clockwise direction, since the induced magnetic field must reinforce the decreasing external magnetic field. c) . A 10 75 . 2 ) s T 0350 . 0 ( 00 . 4 ) m 100 . 0 ( 4 2 2 - × = = = = π π ε dt dB R r R I d) V. 10 50 . 5 2 ) 00 . 4 )( A 10
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Unformatted text preview: = Ω × = = = TOT IR IR e) If the ring was cut and the ends separated slightly, then there would be a potential difference between the ends equal to the induced emf: V. 10 10 . 1 ) s T 0350 . ( ) m 100 . ( 3 2 2-× = = = dt dB r...
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