ch26-p027 - 27. First we find the resistance of the copper...

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9 4 5 3.00 10 V 1.115 10 A 2.69 10 V i R × == = × ×Ω . Therefore, in 3.00 ms, the amount of charge drifting through a cross section is 43 7 (1.115 10 A)(3.00 10 s) 3.35 10 C Qi t −− ∆=∆= × × = × . 27. First we find the resistance of the copper wire to be
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