Two spherical drops of mercury each have a charge of 0.11 nC and a potential of 320 V at the surface. The two drops merge to form a single drop. Part A What is the potential at the surface of the new drop? Express your answer to two significant figures and include the appropriate units. V 391.80 A V ?
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potential of 320 V at the surface. The two drops merge to form a single
drop.
Part A
What is the potential at the surface of the new drop?
Express your answer to two significant figures and include the appropriate units.
O
V = 391.80
V
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- A2.85 μF capacitor is charged to 460 V and a 3.80 μF capacitor is charged to 535 V Part A These capacitors are then disconnected from their batteries, and the positive plates are now connected to each other and the negative plates are connected to each other. What will be the potential difference across each capacitor? Enter your answers numerically separated by a comma. V₁, V₂ = Submit Part B Q1, Q2 = ΠΙ ΑΣΦ What will be the charge on each capacitor? Enter your answers numerically separated by a comma. Submit Request Answer IVE ΑΣΦ Request Answer ? ? V mCY Part A The two plates of a capacitor hold +2500 uC and -2500 µC of charge, respectively, when the potential difference is 970 V What is the capacitance? Express your answer using three significant figures and include the appropriate units. C = Talue: UnitsSome cell walls in the human body have a layer of negative charge on the inside surface and a layer of positive charge of equal magnitude on the outside surface. Suppose that the charge density on either surface is ± 0.50×10−3 C/m2, the cell wall is 5.00 nm thick, and the cell-wall material is air. 1.Find the magnitude of E in the wall between the two layers of charge. 2.Find the potential difference between the inside and the outside of the cell. Which is at the higher potential? 3.A typical cell in the human body has a volume of 10−16m3 . Estimate the total electric-field energy stored in the wall of a cell of this size. (Hint: Assume that the cell is spherical, and calculate the volume of the cell wall.) 4.In reality, the cell wall is made up, not of air, but of tissue with a dielectric constant of 5.40. Repeat part A in this case. 5.In reality, the cell wall is made up, not of air, but of tissue with a dielectric constant of 5.40. Repeat part B in this case.
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