ch30-p065 - 65. (a) The energy delivered by the battery is...

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65. (a) The energy delivered by the battery is the integral of Eq. 28-14 (where we use Eq. 30-41 for the current): () ( ) 22 battery 0 0 6.70 2.00 s 5.50 H 2 11 5.50H 1 10.0V 2.00 s 6.70 6.70 18.7 J. tt Rt L Rt L L Pd t e d t t e RR R e εε −− −Ω ⎡⎤ =− = + ⎢⎥ ⎣⎦ =+ ΩΩ = ∫∫ (b) The energy stored in the magnetic field is given by Eq. 30-49: ( ) 2 2 2 2 6.70 2.00 s 5.50 H
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