Q: The resistance of a rod does NOT depend on: O its conductivity O its material O its temperature O…
A: Introduction: Resistance is a measure of the opposition to current flow in an electrical circuit.…
Q: A typical commercial airplane is struck by lightning about once per year. When this happens, the…
A:
Q: what should happen to the diameter of the wireas the load on the wire is increased? why?
A: Volume of the wire remains constant therefore as the load on the wire increases, its length gets…
Q: Determine the current density in the conductor if a 12 V supply is connected between the ends of a…
A: Given data The potential difference of the supply is V = 12 V The length of the wire is L = 5 mm = 5…
Q: 10 n R4 R1 R6 5 V R2 20 R5 R7 R3 20 >+
A:
Q: What are the differences between a primaryc celland a secondary cell? What is the origin of the…
A: Solution: When we study electricity we come across various types of cells to be used in the…
Q: The total conductance of the circuit shown in Fig. 8 is: 10 2 22 12 ww 013 S 01.6 S 06 S 0 2.5 S…
A:
Q: Of the following, the copper conductor that has the least resistance is: Select one: O a. Thin,…
A: The resistance of any conductor is given by R =ρLA Here ρ = resistivity of copper L = Length of…
Q: Which is true of the material that makes up high resistance wires? A. The wire is made using more…
A: Resistance is the hindrance or opposition offered to the current in a wire. Resistance is directly…
Q: How does wetness affect the resistance of your body?
A: When we are wet, water makes a surface on the skin.
Q: 5 µF 2 µF 5 µF 3 µF 3 µF 6 µF 3 µF 6 µF
A:
Q: A metal wire has a resistance of 10.0 ohms at a temperature of 20.0°C. If the same wire has a…
A:
Q: If 15 coulombs of charge pass through a light bulb in 5 minutes, what amount of current passes…
A: Introduction: The current is defined rate change of the charge flow with respect to the time, it…
Q: The total conductance of the circuit shown in Fig. 8 is: 10 S2 www 2Ω ww 192 www Fig.8
A: From the given figure, R1 = 10 ΩR2 = 2 ΩR3 = 1 Ω
Q: 1. A wire used for wiring electric ranges, hot water heaters, stoves and hairdryers where both heat…
A: This question is based on the study of different types of wires and cables. A wire is a single…
Q: How you would sum up Ohm's law of electrcity
A: Given, To state Ohm's law of electricity
Q: To replace the 1cm diameter blood vessel by 0.25cm diameter arranged in parallel and keep same…
A:
Q: V1 V2 AHE C C2 2.5x10-12 F 4.1×10-12 F 1500 V
A: Capacitance is defined as the ratio of the charge stored to the potential difference across it. The…
Q: What are the factors affecting the resistance of an electrical conductor?
A: To tell, The factors affecting the resistance of an electric conductor 1. NATURE OF MATERIAL…
Q: What are the properties of a conductor in electrostatic equilibrium?
A: A conductor is a material which can allow the electric current to pass through it.
Q: Rank in order, from largest to smallest, the equivalent capacitance (Ceq)A to (Ceq)C of circuits A…
A: Since there’s only one capacitor in A, its equivalent capacitance is same as 3 μF. In B, two…
Q: What is the Uniqueness of Potential Function?
A: To determine: What is the uniqueness of a potential function
Q: If the equivalent capacitance of the circuit below is 12.22 µF, what is the value of C in µF? 12 µF…
A: Given: The equivalent capacitance of the circuit is 12.22 μF.
Q: What are the difference between load resistance in a circuit and internal resistance in a battery?
A: Required : The difference between the load resistance and the internal resistance of a battery.…
Q: Describe the potential of a conductor?
A: Definition: Electric potential or simply potential is defined as potential energy per unit charge.…
Q: Of the following, the copper conductor that has the least resistance is: Select one: O a. Thin,…
A:
Q: The living cells in the body has electrical potential difference across cell 1 point membrane False…
A: Answer :---------- True Because All the living cells maintain a potential difference across their…
Q: The equivalent resistance for the circuit diagram shown can be calculated using ₁+1 ₂+₁ R₁ + R₂3 R12…
A: Given: from the given diagram. The connection of the R2 and R3 is in parallel connection. The…
Q: Explain why the resistance of the current path through the extracellular fluid is much smaller than…
A:
Q: Wire 1 has a resistance of 0.3 ohms. Wire 2 is made of the same material as wire but is three times…
A: Given information:Resistance of the wire 1 = 0.3 ohmLength of wire 1 be “l”The diameter of wire 1 be…
Q: ewspaper articles often have statements such as "10000 volts of electricity surged through the…
A:
Q: Describe the conductors in electrostatic equilibrium?
A: A charged conductors contains excess amount of charge present in it, such that the orientation of…
Q: The resistance of a filament that carries a 2 A when a 10-V potential difference across it is A) 2…
A: Ohm’s Law: Ohm’s law states that in a conducting element, current is directly proportional to the…
Q: Create an illustration of a parallel circuit that connects a battery and five resistors in five…
A:
Q: the factors to which the resistance of a conductor depends.
A: The factor to which the resistance of a conductor depends on
Q: The resistance of a wire is 25 ohms at 50 degree C and 20 ohms at 30 degree C. Determine the…
A:
Q: An aluminum cube has sides of length 18 m. What is the resistance between two opposite faces of the…
A: Specific Resistance (ρ) is a property of any conductive material, a figure used to determine the…
Q: Graphs of the resistance of an electrical component against curren shown below. Which is the correct…
A: Graphs of the resistance of an electrical component against the current through the component are…
Q: Compute the resistance of a hardened copper rod 2 meters long and 8 mm in diameter if the…
A:
Q: Write a question about the electrical action potential of the human nervous system in terms of…
A: An action potential is a rapid rise and fall in voltage/potential across a cellular membrane with a…
Explain the properties of myelinated nerves in terms of the insulating properties of myelin.
![](/static/compass_v2/shared-icons/check-mark.png)
Step by step
Solved in 2 steps with 2 images
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
- Assume a length of axon membrane of about 0.10 m is excited by an action potential (length excited = nerve speed x pulse duration = 50.0 m/s x 0.0020 s = 0.10 m). In the resting state, the outer surface of the axon wall is charged positively with K+ ions and the inner wall has an equal and opposite charge of negative organic ions, as shown in the figure below. Model the axon as a parallel-plate capacitor and take C = ke A/d and Q = CAV to investigate the charge as follows. Use typical values for a cylindrical axon of cell wall thickness d = 2.0 × 10-8 m, axon radius r = 1.6 × 10¹ µm, and cell-wall dielectric constant x = 2.9. Positive charge layer Negative charge layer External fluid Axon wall membrane Internal fluid Axon radius = r No + (a) Calculate the positive charge on the outside of a 0.10-m piece of axon when it is not conducting an electric pulse. (Assume an initial potential difference of 7.0 x 10-² v.) d Your response differs significantly from the correct answer. Rework your…Assume a length of axon membrane of about 0.10 m is excited by an action potential (length excited = nerve speed x pulse duration = 50.0 m/s x 0.0020 s = 0.10 m). In the resting state, the outer surface of the axon wall is charged positively with K+ ions and the inner wall has an equal and opposite charge of negative organic ions, as shown in the figure below. Model the axon as a parallel-plate capacitor and take C = KE A/d and Q = CAV to investigate the charge as follows. Use typical values for a cylindrical axon of cell wall thickness d = 1.3 x 10-8 m, axon radius r = 1.3 × 10¹ μm, and cell-wall dielectric constant x = 2.1. Positive charge layer Negative charge layer External fluid + Axon wall membrane Internal fluid Axon radius = r + + How many sodium ions (Na+) is this? Na+ ions + (a) Calculate the positive charge on the outside of a 0.10-m piece of axon when it is not conducting an electric pulse. (Assume an initial potential difference of 7.0 x 10-² V.) C How many K+ ions are on…Assume a length of axon membrane of about 0.10 m is excited by an action potential (length excited = nerve speed x pulse duration = 50.0 m/s x 0.0020 s = 0.10 m). In the resting state, the outer surface of the axon wall is charged positively with K+ ions and the inner wall has an equal and opposite charge of negative organic ions, as shown in the figure below. Model the axon as a parallel-plate capacitor and take C = K² A/d and Q = CAV to investigate the charge as follows. Use typical values for a cylindrical axon of cell wall thickness d = 2.0 x 10-8 m, axon radius r = 1.6 x 10¹ μm, and cell-wall dielectric constant k = 2.9. Positive charge layer Negative charge layer External fluid Axon wall membrane Internal fluid - Axon radius= d -2 (a) Calculate the positive charge on the outside of a 0.10-m piece of axon when it is not conducting an electric pulse. (Assume an initial potential difference of 7.0 x 10-² v.) 9.03E-10 C How many K+ ions are on the outside of the axon assuming an…
- A myelinated axon conducts nerve impulses at a speed of 40 m/s. What is the signal speed if the thickness of the myelin sheath is halved but no other changes are made to the axon?Assume a length of axon membrane of about 0.10 m is excited by an action potential (length excited = nerve speed × pulse duration = 50.0 m/s × 0.0020 s = 0.10 m). In the resting state, the outer surface of the axon wall is charged positively with K+ ions and the inner wall has an equal and opposite charge of negative organic ions, as shown in the figure below. Model the axon as a parallel-plate capacitor and take C = ??0A/d and Q = CΔV to investigate the charge as follows. Use typical values for a cylindrical axon of cell wall thickness d = 1.1 ✕ 10−8 m, axon radius r = 2.0 ✕ 101 ?m, and cell-wall dielectric constant ? = 2.7. A diagram shows a collection of positive and negative charges in and around an axon. The diagram is divided into three sections, one on top of the other. The top section is labeled "External fluid". A row of positive charges labeled "Positive charge layer" lies along the bottom side of this section. Above the row of positive charges, there is an even mixture of…Assume a length of axon membrane of about 0.10 m is excited by an action potential length excited = nerve speed × pulse duration = 50.0 m/s × 0.0020 s = 0.10 m). In the resting state, the outer surface of the axon wall is charged positively with k* ions and the inner wall has an equal and opposite charge of negative organic ions, as shown in the figure below. Model the axon as a parallel-plate capacitor and take C = ke,A/d and Q = CAV to investigate the charge as follows. Use typical values for a cylindrical axon of cell wall thickness d = 1.4 x 10-8 m, axon radius r = 1.4 x 101 um, and cell-wall dielectric constant k = 2.2.
- Assume a length of axon membrane of about 0.10 m is excited by an action potential (length excited = nerve speed × pulse duration = 50.0 m/s × 0.0020 s = 0.10 m). In the resting state, the outer surface of the axon wall is charged positively with K+ ions and the inner wall has an equal and opposite charge of negative organic ions, as shown in the figure below. Model the axon as a parallel-plate capacitor and take C = ??0A/d and Q = CΔV to investigate the charge as follows. Use typical values for a cylindrical axon of cell wall thickness d = 1.6 ✕ 10−8 m, axon radius r = 1.9 ✕ 101 ?m, and cell-wall dielectric constant ? = 2.6. (a) Calculate the positive charge on the outside of a 0.10-m piece of axon when it is not conducting an electric pulse. (Assume an initial potential difference of 7.0 ✕ 10−2 V.)?CHow many K+ ions are on the outside of the axon assuming an initial potential difference of 7.0 ✕ 10−2 V??K+ ions (b) How much positive charge must flow through the cell membrane to reach…Explain the properties of myelinated nerves in terms of the insulating properties of myelin.-gauge copper wire has a diameter of 9.266 mm. Calculate the power loss in a kilometer of such wire when it carries 1.00102 A.
- Assume a length of axon membrane of about 0.10 m is excited by an action potential (length excited = nerve speed pulse duration = 50.0 m/s 2.0 103 s = 0.10 m). In the resting state, the outer surface of the axon wall is charged positively with K+ ions and the inner wall has an equal and opposite charge of negative organic ions, as shown in Figure P18.43. Model the axon as a parallel-plate capacitor and take C = 0A/d and Q = C V to investigate the charge as follows. Use typical values for a cylindrical axon of cell wall thickness d = 1.0 108 m, axon radius r = 1.0 101 m, and cell-wall dielectric constant = 3.0. (a) Calculate the positive charge on the outside of a 0.10-m piece of axon when it is not conducting an electric pulse. How many K+ ions are on the outside of the axon assuming an initial potential difference of 7.0 102 V? Is this a large charge per unit area? Hint: Calculate the charge per unit area in terms of electronic charge e per squared (2). An atom has a cross section of about 1 2 (1 = 1010 m). (b) How much positive charge must flow through the cell membrane to reach the excited state of + 3.0 102 V from the resting state of 7.0 102 V? How many sodium ions (Na+) is this? (c) If it takes 2.0 ms for the Na+ ions to enter the axon, what is the average current in the axon wall in this process? (d) How much energy does it take to raise the potential of the inner axon wall to + 3.0 102 V, starting from the resting potential of 7.0 102 V? Figure P18.43 Problem 43 and 44.Assume a length of axon membrane of about 0.10 m is excited by an action potential (length excited = nerve speed pulse duration = 50.0 m/s 2.0 103 s = 0.10 m). In the resting state, the outer surface of the axon wall is charged positively with K+ ions and the inner wall has an equal and opposite charge of negative organic ions, as shown in Figure P18.43. Model the axon as a parallel-plate capacitor and take C = 0A/d and Q = C V to investigate the charge as follows. Use typical values for a cylindrical axon of cell wall thickness d = 1.0 108 m, axon radius r = 1.0 101 m, and cell-wall dielectric constant = 3.0. (a) Calculate the positive charge on the outside of a 0.10-m piece of axon when it is not conducting an electric pulse. How many K+ ions are on the outside of the axon assuming an initial potential difference of 7.0 102 V? Is this a large charge per unit area? Hint: Calculate the charge per unit area in terms of electronic charge e per squared (2). An atom has a cross section of about 1 2 (1 = 1010 m). (b) How much positive charge must flow through the cell membrane to reach the excited state of + 3.0 102 V from the resting state of 7.0 102 V? How many sodium ions (Na+) is this? (c) If it takes 2.0 ms for the Na+ ions to enter the axon, what is the average current in the axon wall in this process? (d) How much energy does it take to raise the potential of the inner axon wall to + 3.0 102 V, starting from the resting potential of 7.0 102 V? Figure P18.43 Problem 43 and 44.Some types of spiders build webs that consist of threads made of dry silk coated with a solution of a variety of compounds. This coating leaves the threads, which are used to capture prey, hygroscopic—that is, they attract water from the atmosphere. It has been hypothesized that this aqueous coating makes the threads good electrical conductors. To test the electrical properties of coated thread, researchers placed a 5-mm length of thread between two electrical contacts. The researchers stretched the thread in 1-mm increments to more than twice its original length, and then allowed it to return to its original length, again in 1-mm increments. Some of the resistance measurements are shown in the table: (a) What is the best explanation for the behavior exhibited in the data? (b) If the conductivity of the thread results from the aqueous coating only, how does the cross-sectional area of the coating compare when the thread is 13 mm long versus the starting length of 5 mm? Assume that the…
![College Physics](https://www.bartleby.com/isbn_cover_images/9781938168000/9781938168000_smallCoverImage.gif)
![Glencoe Physics: Principles and Problems, Student…](https://www.bartleby.com/isbn_cover_images/9780078807213/9780078807213_smallCoverImage.gif)
![Physics for Scientists and Engineers: Foundations…](https://www.bartleby.com/isbn_cover_images/9781133939146/9781133939146_smallCoverImage.gif)
![College Physics](https://www.bartleby.com/isbn_cover_images/9781305952300/9781305952300_smallCoverImage.gif)
![College Physics](https://www.bartleby.com/isbn_cover_images/9781285737027/9781285737027_smallCoverImage.gif)
![College Physics](https://www.bartleby.com/isbn_cover_images/9781938168000/9781938168000_smallCoverImage.gif)
![Glencoe Physics: Principles and Problems, Student…](https://www.bartleby.com/isbn_cover_images/9780078807213/9780078807213_smallCoverImage.gif)
![Physics for Scientists and Engineers: Foundations…](https://www.bartleby.com/isbn_cover_images/9781133939146/9781133939146_smallCoverImage.gif)
![College Physics](https://www.bartleby.com/isbn_cover_images/9781305952300/9781305952300_smallCoverImage.gif)
![College Physics](https://www.bartleby.com/isbn_cover_images/9781285737027/9781285737027_smallCoverImage.gif)