ch27-p012 - 12. (a) We solve i = (2 1)/(r1 + r2 + R) for R:...

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12. (a) We solve i = ( ε 2 1 )/( r 1 + r 2 + R ) for R : R i rr = −− = × −−= × 21 12 3 2 30 20 99 10 .. . . VV 1.0 10 A ΩΩ (b) P = i
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