Changing the thickness of the myelin sheath surrounding an axon changes its capacitance and thus the conduction speed. A myelinated nerve fiber has a conduction speed of 55 m/s. If the spacing between nodes is 1.0 mm and the resistance of segments between nodes is 25 MΩ, what is the capacitance of each segment?

Q: A battery with an internal resistance of 1.5 ohms  is connected in series with resistors R1 = 3 ohms…

A: Given data:  Internal resistance (r) = 1.5 Ω The battery is connected in series with two resistors…

Q: In the figure the ideal batteries have emfs E, = 4.89 V and E2 = 10.2 V, the resistances are each…

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Q: A capacitor is charged to a potential of 12.0 V and is then connected to a voltmeter having a total…

A: The expression for voltage across a discharging capacitor is given by…

Q: In the figure R1 = 110 Q, R2 = R3 = 75.0 Q, R4 = 110 Q, and the ideal battery has emf ɛ = 6.00 V.…

A: Given Resistance of the resistors are given as R1=110 Ω, R2=R3=75.0 Ω  and R3=110 Ω emf of the…

Q: The emf source, E, of the circuit shown in the figure has negligible internal resistance. The…

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Q: In the figure R1 = 83.0 Q, R2 = R3 = 44.0 Q, R4 = 103 0, and the ideal battery has emf ɛ = 6.00 V.…

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Q: light bulb resistance, = 120 Q is connected across a voltage source, V = 240 V. How many electrons…

A: Using Ohm's law find current in the wire: V = I*R I = V/R Given that: V = 240 V, and  R = Resistance…

Q: In a heart pacemaker, a pulse is delivered to the heart 81 times per minute. The capacitor that…

A: Given data The rate of the pulse delivered is η = 81 times/min  The magnitude of the resistance is R…

Q: PROBLEM 6: 2.5 N b + 4.5 V In the circuit shown, Determine the following: 6.2 V+ A. Magnitude and…

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Q: In the figure the ideal batteries have emfs E, = 4.89 V and E2 = 10.2 V, the resistances are each…

A:

Q: In a heart pacemaker, a pulse is delivered to the heart 81 times per minute. The capacitor that…

A: Number of pulses per minute = 81 Time taken for each pulse = 6081 s= 0.74 seconds Resistance =…

Q: In the figure R, = 87.0 0, R2 = R3 = 38.0 0, R4 = 58.8 Q, and the ideal battery has emf ɛ = 6.00 V.…

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Q: in Figure (a), both batteries have emf ɛ = 1.30 V and the external resistance R is a variable…

A: Voltage across Battery is given as, Vb=ε-ir where ε is emf            i is current            r is…

Q: A capacitor with capacitance C = 5 μF is charged to a voltage V = 10V. It is then discharged through…

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Q: A heart pacemaker fires 67 times a minute, each time a 25.0 nF capacitor is charged (by a battery in…

A: Given, A heart pacemaker fires 67 times a minute. Capacitance=25nF Voltage=0.632v Resistance=?

Q: A capacitor of capacitance C=2mF is discharging through a resistance R=0.5M2. How long (in sec) does…

A: C = 2 mF R = 0.5 Mega - ohm = 500000 ohm Vinitial = V Vfinal = V2

Q: In the figure R1 = 1500, R2 = R3 = 49.0 0, R4 = 89.5 0, and the ideal battery has emf ɛ = 6.00 V.…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: An electronic flashgun has a capacitor with capacitance C that is charged to a voltage V. Answer the…

A: Capacitance, C = 1441 μF  Voltage,V = 317 V Time, t= 0.0032 s

Q: If the unknown resistor, R, is 20 Q, what is the voltage drop across that resistor, R? 10 0 10Ω. 10…

A: Solution:Here R1, R2 are in series thus…

Q: . If two resistors with resistance R1 and R2 are connected in parallel, the total resistance R in…

A: Given R1= 600 ohm R2 = 400 ohm change in first resistance dR1 = 0.4 ohms/s change in second…

Q: itor is charged to a potential of 12.0 V and then connected to a voltmeter having an internal…

A: Given values:- Potential,(V)=12 V -----(1) Internal resistance,(R)=3.40 MΩ=3.40 x 106 Ω ------(2)…

Q: A battery with an emf of 40 V and internal resistance of 0.2 Q is connected across a load resistor…

A: The relation between the current and the voltage is given by  V = I R  where, I is the current, R is…

Q: In the figure the ideal batteries have emfs 81 = 23 V and %2 = 6.0 V and the resistors have…

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Q: The emf source, E, of the circuit shown in the figure has negligible internal resistance. The…

A:

Q: In the figure the ideal batteries have emfs E1 = 4.89 V and E2 = 10.2 V, the resistances are each…

A:

Q: To maximize the percentage of the power from the emf of a battery that is delivered to a device…

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Q: ne wire in a high-voltage transmission line carries 1 000 A starting at 460 kV for a distance of 250…

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Q: In the circuit shown, the resistance R = R = R3 = R4 = Rs = 17.0 2. A voltmeter measures the…

A: Consider  the given data as below. The resistors, R1=R2=R3=R4=R5=17.0 Ω The voltage when switch is…

Q: The terminal voltage of a battery is 13.5 v when 5 A current enters its positive terminal, but when…

A:

Q: In the figure R1 = 130 N, R2 = R3 = 48.0 0, R4 = 102 0, and the ideal battery has emf e = 6.00…

A: R1=130 ohm  R2=R3=48 ohm  R4= 102 ohm  E= 6volts

Q: Consider a thin aluminum wire with diameter d= 6 mm The resistivity of aluminum is 2.65x10-8 Q.m.…

A: Recall R=ρL/A

Q: In the figure the ideal batteries have emfs E1 = 4.98 V and E2 = 10.6 V, the resistances are each…

A: Ohm's Law Ohm's law states that "if current is flowing through two points of a conductor, then the…

Q: A heart defibrillator being used on a patient has an RC time constant of 9.5 ms due to the…

A: time constant = 9.5 ms C = 6.5 μF V = 11.5 kV

Q: In the figure the ideal batteries have emfs E1 = 4,89 V and E2 = 10.2 V, the resistances are each…

A:

Q: In the figure the ideal batteries have emfs E, = 4.89 V and E2 = 10.2 V, the resistances are each…

A:

Q: 1) In the RC circuit, when a resistor R=100 M2 is connected to a fully charged capacitor C= 1µF ,…

A: Resistance, R=100 MΩ = 100×106 Ω Capacitance, C=1μF=1×10-6 F

Q: In the figure the ideal batteries have emfs 1 = 13.1 V and 2 = 4.17 V, and the resistances are each…

A: Given, ε1=13.1 Vε2=4.17 VR=4.02 Ω

Q: In the figure the ideal batteries have emfs E = 5.25 V and E2 = 13 V, the resistances are each 2.02…

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Q: In the figure R1 = 130 Q, R2 = R3 = 62.0 Q, R4 = 89.8 Q, and the ideal battery has emf ɛ = 6.00 V.…

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Q: A 10 kΩ resistor and a 3 nF capacitor are connected across a 10 V battery. The time it takes for the…

A:

Q: A rod of semiconducting material of length L = 4 m and cross-sectional area A = 3.5 mm2 lies along…

A: Given, L=4m A=3.5 mm2 V0=15+VL

Q: A wire of initial length L0 and radius r0 has a measured resistance of 2 Ohms. The wire is drawn…

A: Let R and R0 be the new and the original resistance. When the wire is stretched its volume before…

Q: A particular myelinated axon has nodes spaced 0.80 mm apart. The resistance between nodes is 20 MΩ;…

A: Given: The space between the nodes is 0.80 mm. The resistance between the nodes is 20 MΩ. The…

Q: Two identical light bulbs, X and Y, are connected in parallel to a battery, with an internal…

A: Bulbs are connected in parallel . The internal resistance of the battery is r . Emf of the battery…