Cell membranes contain channels that allow ions to cross the phospholipid bilayer. Suppose that a particular potassium channel carries a current of 2.1 pA2.1 pA. How many potassium ions (K+K+) pass through it in 1.0 ms1.0 ms?

Q: A light bulb is connected to a 120.0-V wall socket. The current (in Amperes) in the bulb depends on…

A:

Q: the South American eel are arranged in 140 rows, each row stretching horizontally along the body and…

A: Given:- We know that We have given that the electroplates in the S.A  are arranged in 140 rows and…

Q: A teapot with a surface area of 715 cm is to be plated with silver. It is attached to the negative…

A: Surface area (A) = 715 cm2Potential difference of the battery (V) = 12 volts Resistance (R) = 1.5…

Q: Three wires of the same diameter and length are made from three different metals: copper (ρ = 1.7 ×…

A: Given data:  The length and diameter of three wires are same The resistivity of materials ρcu = 1.7…

Q: B1

A: Given: Power,P=1.54WPotential Difference,V=3.80VTime,t=5.63hrs=5.63×3600s The quantity of energy…

Q: A 170-km-long high-voltage transmission line 2.0 cm in diameter carries a steady current of 1,240 A.…

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Q: Suppose 1.67 C of charge passes through the filament of a light bulb in 2.00 seconds. How many…

A: Given, total charge passing in 2s, Q=1.67 C So the current is, I=Qt=1.67C2s=0.835A So in 5 sec total…

Q: Cell membranes contain channels that allow ions to cross the phospholipid bilayer. Suppose that a…

A: Current Time interval

Q: A taser sends about 1100 V through the human body, resulting in an average current of 2.5 mA. From…

A: Human body acts as an electrical resistance when voltage is applied through it. Because of the…

Q: Number 12 copper wire (diameter 0.08080 inch) used for electrical installations in homes. What is…

A: Given, Diameter of wire,d=0.08 inch=0.002 m Length,L=50 m Resistivity,ρ=1.7×10-8Ωm Current,I=6 A

Q: Electric fish generate current with biological cells called electroplaques, which are physiological…

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Q: A cylindrical aluminum pipe of length 2.49 m has an inner radius of 2.11 × 10-3 m and an outer…

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Q: he biochemistry that takes place inside cells depends on various elements, such as sodium,…

A: Current, i = 7.49 pA = 7.49×10-12 A Time, ∆t = 1.48 ms = 1.48×10-3 s Diameter, d = 0.269 nm = 0.269…

Q: A 250-km-long high-voltage transmission line 2.00 cm in diameter carries a steady current of 1,070…

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Q: A power transmission line is hung from metal towers with glass insulators having a resistance of…

A: We know that V=IR                                where V= voltage…

Q: Wires A and B, having equal lengths of 42.6 m and equal diameters of 2.87 mm, are connected in…

A:

Q: Nerve impulses are carried along axons, the elongated fibers that transmit neural signals. We can…

A: Given Diameter  = 10 μm Specific resistance ρ = 0.5 ohm. meter Length l = 7 mm To Find out…

Q: The density of mobile electrons in copper metal is 8.4 x 1028 m, Suppose that / 9.0 x 101…

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Q: Suppose 1.67 C of charge passes through the filament of a light bulb in 2.00 seconds. How many…

A: The charge is given as q=ne…

Q: Wires A and B, having equal lengths of 40.0 m and equal diameters of 2.94 mm, are connected in…

A: As per guidelines, only 3 subparts are solved here. Given, Length of wire A = 40m Length of wire B =…

Q: The density of mobile electrons in copper metal is 8.4 x 1028 m3. Suppose that / 4.7 x 1018…

A:

Q: A heart defibrillator is used to enable the heart to start beating if it has stopped. This is done…

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Q: 1.00 M2 A conducting sphere is charged by an emf source & through a 1.00 MQ resistor. When the…

A: Given Resistance is R=1.00×106 Ω Charge is Q=1.00×10-6 C Current is I=1×10-3 A Permittivity of free…

Q: A current of 9.50 A flows in a conductor for 8.00 s. How many electrons pass a given point in the…

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Q: The biochemistry that takes place inside cells depends on various elements, such as sodium,…

A:

Q: A power transmission line is hung from metal towers with glass insulators having a resistance of…

A: Solution: The current flow through the insulator can be obtained by using Ohm's law. Ohm's law is…

Q: A high-voltage electricity transmission line is hung from metal towers with glass insulators having…

A: Given Resistance of wire = 0.85 × 109 Ω  Applied voltage = 180 kV We have to calculate the current

Q: A current of 4.50 A flows in a conductor for 7.50 s. How many electrons pass a given point in the…

A: Given data:  Current (I) = 4.50 A Time (t) = 7.50 s Required: Number of electrons passed through…

Q: An ion channel in a cell membrane carries 2.4 pA when it's open, which is only 20% of the time. (a)…

A: Solution of part A   The average current is given by Iavr = 2.4×10-12×20100Iavr = 0.48×10-12 AIavr =…

Q: A current of 2 A flows through a gold wire with a radius of 3 cm and a length of 15 m. There are…

A: Given data:  Current (I) = 2 A Radius (r) = 3 cm = 0.03 m Free electron density (n) = 3.50×1020…

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Q: A 290-km-long high-voltage transmission line 2.00 cm in diameter carries a steady current of 1.230…

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Q: An electric fish can generate a current with biological cells called electrocytes. The electrocytes…

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Q: Suppose you have a rod of pure silicon with a diameter of 2.79cm and a length of 20.6cm. These rods…

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Q: A high voltage transmission line of diameter 2.55 cm and length 3.42167 km carries a steady current…

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Q: A power transmission line is hung from metal towers with glass insulators having a resistance of…

A: Given that resistance is 1.00×109 Ω, and voltage is 200 kV.

Q: A teapot with a surface area of 790 cm2 is to be plated with silver. It is attached to the negative…

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Q: A certain single ion channel is selectively permeable to K+ and has a resistance of 1.15 GQ,…

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Q: Wires A and B, having equal lengths of 40.0 m and equal diameters of 2.94 mm, are connected in…

A: Given length of wire A = length of wire B = 40 m diameter of wire A = diameter of wire B = 2.94 mm…

Q: V(Volts ) R1 202 ww ww ww Q4.7 If the slope of the graph is 18 V/A, then the resistance R, (in 2)…

A: Given : Slope of the VI graph = 18 V/A

Q: In the figure R₁ = 1300. R₂ R3-44.00. R4-59.00, and the ideal battery has emf = 6.00 V. (a) What is…

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Resistivity

Resistivity is a characteristic property of the conductor’s material that measures the extent to which the material opposes the flow of current. It is denoted by the Greek letter “rho”. Electrical resistivity, also known as specific resistance, depends on the nature of the material of the conductor and is unaffected by its dimensions.