A soap bubble 10 cm in radius with a wall thickness of 3.3 x 10-6 cm is charged to a potential of 100 V. The bubble bursts and falls as a spherical drop. Estimate the potential of the drop.
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- What is the thickness of a specific cell membrane if we measure a constant electric field of 3.0 MV/m and a potential of 30 mV across it?An electrostatic paint sprayer has a 0.25 m diameter metal sphere at a potential of 25.0 kV with respect to the ground that repels paint droplets onto a grounded object. Part (a) What charge is on the sphere, in coulombs? Q = Part (b) What charge, in coulombs, must a 0.12 mg drop of paint have in order to arrive at the object with a speed of 10.0 m/s, starting from rest? q =What is the potential difference between point A and point B in the diagram below?
- Two metal plates are charged such that there is a 10 V potential difference between them. A positive charge is to be moved from the lower plate to the top plate. Starting from the point on the lower plate, following which path to the top plate will we do the least work moving the charge?The potential at the center of a square is 6V when a charge of +Q is located at one of the square’s corners. What is the potential at the center of the square when a second charge of -Q charge is placed at one of the remaining corners?Two parallel conducting plates are separated by 9 mm and one of them is at zero volts. What is the potentialdifference between the plates if the electric potential 6 mm from the zero volt plate is +180 V?
- An ion accelerated through a potential difference of 300.00 V has its potential energy decreased by potential energy of 9.60 10-17 J. Calculate the charge on the ion.An electrostatic paint sprayer has a 0.200 m diameter metal sphere at a potential of 22.0 kV. (a) What charge is on the sphere? C(b) Paint droplets initially at rest are dispensed from a paint gun. These droplets are then repelled by the paint sprayer toward the object to be painted. This object is grounded and therefore the electric potential is taken to be zero everywhere on the object. What charge must a 0.600 mg drop of paint have to arrive at the grounded object with a speed of 17.0 m/s? CAn electrostatic paint sprayer has a 0.21 m diameter metal sphere at a potential of 25.0 kV with respect to the ground that repels paint droplets onto a grounded object. Part (a) What charge is on the sphere, in coulombs? Q = Part (b) What charge, in coulombs, must a 0.075 mg drop of paint have in order to arrive at the object with a speed of 10.0 m/s, starting from rest? q =