Chapter 27: Q. 13 (page 762)

When a nerve cell fires, the charge is transferred across the cell membrane to change the cell's potential from negative to positive. For a typical nerve cell, $9.0 p C$ of charge flows in a time of $0.50 ms$ . What is the average current through the cell membrane?

Short Answer

Expert verified

The average current through the cell membrane is $1.8 \times 10^{- 8} A .$

Step by step solution

Given Information

Charge flow $= 9.0 p C$

Time $= 0.50 m s$

Explanation

The average current is simply equal to the total charge that flows divided by total time required yielding

$I = \frac{Q}{t}$

Substitute the values,

$= (\frac{9.0 \times 10^{- 12} C}{0.50 \times 10^{- 3} s})$

$I = 1.8 \times 10^{- 8} A .$

Final Answer

Hence, the average current through the cell membrane is $1.8 \times 10^{- 8} A .$

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When a nerve cell fires, the charge is transferred across the cell membrane to change the cell's potential from negative to positive. For a typical nerve cell, $9.0 p C$ of charge flows in a time of $0.50 ms$ . What is the average current through the cell membrane?

Short Answer

Step by step solution

Given Information

Explanation

Final Answer

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When a nerve cell fires, the charge is transferred across the cell membrane to change the cell's potential from negative to positive. For a typical nerve cell, 9.0pCof charge flows in a time of 0.50ms. What is the average current through the cell membrane?

Short Answer

Step by step solution

Given Information

Explanation

Final Answer

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Physics Textbooks

Fundamentals of Physics

Magnetism and Electromagnetic Induction

Engineering Physics

Rotational Dynamics

Conservation of Energy and Momentum

Famous Physicists

Study anywhere. Anytime. Across all devices.

When a nerve cell fires, the charge is transferred across the cell membrane to change the cell's potential from negative to positive. For a typical nerve cell, $9.0 p C$ of charge flows in a time of $0.50 ms$ . What is the average current through the cell membrane?