A potential difference exists between the inner and outer surfaces of the membrane of a cell. The inner surface is negative relative to the outer surface. If 1.15 x 10-20 J of work is required to eject a positive sodium ion (Na*) from the interior of the cell, what is the magnitude of the potential difference between the inner and outer surfaces of the cell? magnitude of the potential difference: Enter numeric value
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- Consider the following figure. (a) Find the equivalent capacitance between points a and b for the group of capacitors connected as shown in the figure above. Take C1 = 2.00 µF, C2 = 14.0 µF, and C3 = 5.00 µF. b) What charge is stored on C3 if the potential difference between points a and b is 60.0 V?A 130 pF capacitor is charged to a potential difference of 50 V, and the charging battery is disconnected. The capacitor is then connected in parallel with a second (initially uncharged) capacitor. If the measured potential difference across the first capacitor drops to 27 V, what is the capacitance of this second capacitor? Number i 1.1E-12 Units PF13
- When we say that the potential of a car battery is 12 V, we mean that the potential difference between the positive and negative terminals of the battery is 12 V. If you wanted to move an electron from the positive to the negative terminal of the battery, how much work WWW would you need to do on the electron? Enter your answer numerically in joules.Three parallel plate capacitors, each having a capacitance of 1.0 µF are connected in parallel. The potential difference across the combination is 100 V What is the total charge delivered by the capacitors? 30 µC 100 µC 300 µC O 1000 µC 3000 µCA potential difference of 106 mV exists between the inner and outer surfaces of a cell membrane. The inner surface is negative relative to the outer surface. How much work is required to eject a positive sodium ion (Na+) from the interior of the cell? J
- Calculate the magnitude of the potential difference between points a and b in the figure if R₁=2.262, R₂=4.46£,and R3=10.02Q. 12.0 V R₁ R₂ 4.00 V www R3Suppose that the electric potential outside a living cell is higher than that inside the cell by 0.077 V. How much work is done by the electric force when a sodium ion (charge = +e) moves from the outside to the inside? Number i Units tplease answer this question
- Consider the following figure. (Assume R₁ = 4.80 , R₂ = 7.90, and E = 20.0 V.) 1 + R₁ www 4.00 V + R₂ a -WW- 10.0 Ω b (a) Calculate the magnitude of the potential difference between points a and b in the figure above. X Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. V (b) Identify which point is at the higher potential. point a point b they are at equal potentialsThe figure shows a system of four capacitors, where the potential difference across ab is 50 V. (a) Find the equivalent capacitance of this system between a and b.(b) How much charge is stored by this combination of capacitors?(c) How much charge is stored in the 10.0 μF capacitor?(d) How much charge is stored in the 9.0 μF capacitor?In the figure how much charge is stored on the parallel-plate capacitors by the 10.0 V battery? One is filled with air, and the other is filled with a dielectric for which K = 4.60; both capacitors have a plate area of 2.40 × 10-³ m² and a plate separation of 6.10 mm. Number i Units V C₁ C₂.