Question

A nerve signal is transmitted along a nerve axon which is modelled as a capacitor with...

A nerve signal is transmitted along a nerve axon which is modelled as a capacitor with area A1 and plate separation d1. Assume that the expression used for the uniform parallel plate capacitor is valid. The initial capacitance is C1. If the area A is decreased to 0.9 A1 and the plate separation is increased to 1.2 d1, which of the following best describes the new capacitance?

Select one: a. 0.75C1 b. 1.08C1 c. C1 d. 1.33C1 e. 0.927C1

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
1)A parallel plate capacitor (denoted as Capacitor 1) has a plate area A1 and a separation...
1)A parallel plate capacitor (denoted as Capacitor 1) has a plate area A1 and a separation distance d1. It is filled with a dielectric made of mylar (κ=3.1). With these conditions, it has a capacitance C1. A second parallel plate capacitor (denoted as Capacitor 2) has the same plate area as the first capacitor (A1 = A2) but the separation distance is twice as large (d1 = ½ d2). The second capacitor is filled with the same dielectric (mylar) and...
1 A parallel plate capacitor is connected to a battery and becomes fully charged the capacitor...
1 A parallel plate capacitor is connected to a battery and becomes fully charged the capacitor is then disconnected and the separation between the plates is halved in such a way that so charge leaks off As the plate separation is being halved which of the following parameters remains constant? An air filled k=1 ideal parallel plate capacitor has a capacitance of C. If the area of the plates is doubled insert a dielectric material k=2 and the distance between...
2. The portion of a nerve cell that conducts signals is called an axon. Many of...
2. The portion of a nerve cell that conducts signals is called an axon. Many of the electrical properties of axons are governed by ion channels, which are protein molecules that span the axon’s cell membrane. When open, each ion channel has a pore that is filled with fluid of low resistivity and connects the interior of the cell electrically to the medium outside the cell. In contrast, the lipid-rich cell membrane in which ion channels reside has very high...
A parallel-plate capacitor is charged and then disconnected from a battery. Then, the plate separation is...
A parallel-plate capacitor is charged and then disconnected from a battery. Then, the plate separation is decreased by a factor of 4, d_new=1/4 d_old, please type in a number into the box to determine how everything changes. (If something doesn't change, please type in 1 to answer X_new= 1 X_old.) (a) By what fraction does the capacitance change? C_new=  C_old; (b) By what fraction does the amount of charge change? Q_new=  Q_old (When the battery is disconnected, the charges have no place...
10. A spherical conductor of radius R = 1.5cm carries the charge of 45μ, (a) What...
10. A spherical conductor of radius R = 1.5cm carries the charge of 45μ, (a) What is the charge density (ρ) of the sphere? (b) Calculate the electric field at a point r = 0.5cm from the center of the sphere. (c) What is the electric field on the surface of the sphere? 11. Two capacitors C1 and C2 are in series with a voltage V across the series combination. Show that the voltages V1 and V2 across C1 and...