A potassium ion channel in a cell membrane is filled with intracellular fluid. The potassium ions have charge e. If the channel is open for 2ms, 1.5×104 ions flow through the channel. The potential difference across the channel is 70mV. The resistance of the channel equals

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A: Given data: The length of wire is L. The resistance is R.

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A: It is given that

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Q: A potential difference of 50.0V can move 3.22x 1022 electrons in 5 minutes through a wire. What is…

A: Given data:  Potential difference (V) = 50.0 V Number of electrons (n) = 3.22 × 1022 Time (t) = 5…

Q: A 200 μF defibrillator capacitor is charged to 1200 V. When fired through a pa- tient's chest, it…

A: Let initial charge = QAfter , the final charge Q(t) = 0.05 Q (Since, 95 % lose)Voltage Capacitor…

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Q: A battery (delta V= 1.7 V) contains E = 1.7 kJ of energy. It is connected to a P = 5.5 W light bulb.…

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Q: Find the equivalent resistance between points A and B in the drawing. Assume R₁-26 0, R₂-130,…

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Q: The figure below shows a battery connected to a circuit. The potential difference across the battery…

A: To determine: The current in resistance 12 ohm. Formula used: when resistance in…

Q: The drawing shows three different resistors in two different circuits. The battery has a voltage of…

A: Given, Voltage (v)=26v R1 = 50.0 Ω, R2 = 25.0 Ω and R3 = 10.0 Ω

Q: In the circuit shown in the figure. R1 = 10 0. R2- 120, R3- 200, V1-1.0v, V2=7.0V, and the batteries…

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Q: 34.0 33.8 33.6 33.4 10 I (A) Figure shows the electric potential AV across the teminals of a battery…

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Q: Two conductors are made of the same material and have the same length. Conductor A is a solid wire…

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Q: A cylindrical aluminum pipe of length 1.88 m has an inner radius of 1.63 × 10-³ m and an outer…

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Q: A proton in a particle accelerator has a velocity of 4 x 10^7 m/s when observed at point A and a…

A: Given data The velocity of the photon at point A is obtained as vA = 4 x 107 m/s. The velocity of…

Q: The density of mobile electrons in copper metal is 8.4 x 1028 m3. Suppose that i = 7.2 x 10¹8…

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Q: 8. The resistance R and temperature T for an electric conductor is given as R =r +aT with r as the…

A: dependence of resistance (R) on the temperature is given as : R = r + aT where r is the resistance…

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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: Question #10. If a 30 resistor is placed between R1 and R2, while a 20 Q resistor is between R3 and…

A: Given: The 3 Ω resistance is placed between R1 and R2. The 20 Ω resistance is placed between R3 and…

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

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A: Given data: The potential difference, V=10 V Number of electrons, Time taken, t=80 s

Q: capacitor of 10.0 μF and a resistor of 130 Ω are quickly connected in series to a battery of 5.00 V.…

A: Capacitance C = 10 μF Resistance R = 130 Ω Time t = 0.00200 s   Charge Q = ?

Q: volume of metal a new wire is made that is three times longer than t original wire. What is the…

A: R= 21 Ω let the initial length and area of cross-section of wire be=> l and A let new wire's…

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Q: The resistance of a rod with a length of 3.0 m and a diameter of 1.0 cm is 56.0 Ω. If this rod is…

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Q: 3.0 A of electric current pass through a 4.0 Q resistor. How many electrons pass through the…

A: We know that,Current, I=qtwhere, q=nehence, I=net n is the number of electrons passing through the…

Q: 15 A teapot with a Surface area of 325 cm' to be plated with silver. It is attached to the negative…

A: Given: The surface area of the tea pot is 325 cm2 or 325×10-4 m2            The battery is 12 V.…

Q: Question #9. Given the same diagram, calculate the equivalent resistance between point A and B. R2…

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Q: In the figure, what is the equivalent resistance (Reg) in 2 between terminals A and B? RI R2 RIO RE

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Q: A 1 m long electrically conductive wire made of material X has electrical conductivity of…

A: Solution:   As per the given data,   We know that,   Electrical resistivity is given as:   ρ=RAl…