28.36.Solve:(a)A current of 1.8 pA for the potassium ions means that a charge of 1.8 pC flows through thepotassium ion channel per second. The number of potassium ions that pass through the ion channel per second is18 1016 101 12510121971...××=×−−−±C/sCsSince the channel opens only for 1.0 ms, the total number of potassium ions that pass through the channel is
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