Question: When an ion channel opens in a cell wall, monovalent (charge (e) ) ions flow through the channel at a rate of (1.0 times 10^{7}

When an ion channel opens in a cell wall, monovalent (charge $e$ ) ions flow through the channel at a rate of $1.0 \times 10^{7} \mathrm{ions} / \mathrm{s}$.

a. What is the current through the channel?

b. The potential difference across the ion channel is $70 \mathrm{mV}$. What is the power dissipation in the channel?

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