Question
Nerve cells transmit electric signals through their long tubular axons. These signals propagate due to a sudden rush of $\mathrm{Na}^{+}$ ions, each with charge $+e$, into the axon. Measurements have revealed that typically about $5.6 \times 10^{11} \mathrm{Na}^{+}$ ions enter each meter of the axon during a time of $10 \mathrm{~ms}$. What is the current during this inflow of charge in a meter of axon?
Step 1
We have the number of sodium ions, \( N = 5.6 \times 10^{11} \), entering each meter of the axon in a time interval, \( \Delta t = 10 \, \text{ms} = 10 \times 10^{-3} \, \text{s} \). Show more…
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Nerve cells transmit electrical signals through their long tubular axons. These signals propagate due to a sudden rush of $\mathrm{Na}^{+}$ ions, each with charge $+e,$ into the axon. Measurements have revealed that typically about $5.6 \times 10^{11} \mathrm{Na}^{+}$ ions enter each meter of the axon during a time of $10 \mathrm{~ms}$. What is the current during this inflow of charge in a meter of axon?
Nerve cells transmit electric signals through their long tubular axons. These signals propagate due to a sudden rush of Na${^+}$ ions, each with charge $+e$, into the axon. Measurements have revealed that typically about 5.6 $\times$ 10$^{11}$ Na${^+}$ ions enter each meter of the axon during a time of 10 ms. What is the current during this inflow of charge in a meter of axon?
Current, Resistance, and Electromotive Force
Current
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