Two electrodes (0.68 mm apart) in your car's spark plug are subject to a 4.7 kV potential difference. What magnitude electric field does this produce in the region between the two electrodes? Express your answer with the appropriate units. I μA E= Units Value
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- Two 1.7-cm-diameter disks face each other, 1.5 mm apart. They are charged to ± 10 nC. What is the electric field strength between the disks? A proton is shot from the negative disk toward the positive disk. What launch speed must the proton have to just barely reach the positive disk?The potential difference across a cell membrane is −68.0 mV. If the membrane’s thickness is 16.6 nm, what is the magnitude of the electric field in the membrane? Assume the field is uniform.Two large parallel plates are separated by a 0.015-m gap. The plates are connected to the terminals of a 12-V battery, which remains connected. a) What is the strength of the electric field in the region between the plates? b) What happens to the strength of the electric field if the gap between the plates is reduced to 0.010 m? Justify your answer. c) Does charge flow through the battery as the separation between the plates is being reduced? Explain your answer.
- A capacitor is composed of two metal plates. The two plates have the dimensions L = 0.11 m and W = 0.56 m. The plates have a distance between them of d = 0.1 m, and are parallel to each other. Part (a) The plates are connected to a battery and charged such that the first plate has a charge of q. Write an expression for the magnitude of the electric field, |E|, halfway between the plates. Part (b) Input an expression for the magnitude of the electric field, |E2|, just in front of plate two. Part (c) If plate two has a total charge of q = -1 mC, what is its charge density, σ, in C/m2?Two large parallel plates carry opposite charges of equal magnitude. They are separated by 80.0 mm and the potential difference is 120 V. What is a magnitude of the uniform electric field in the region between the plates?Oppositely charged parallel plates are separated by 5.36 mm. A potential difference of 600 V exists between the plates. (a) What is the magnitude of the electric field strength between the plates? N/C(b) What is the magnitude of the force on an electron between the plates? N(c) How much work must be done on the electron to move it to the negative plate if it is initially positioned 2.92 mm from the positive plate? J
- Oppositely charged parallel plates are separated by 3.77 mm. A potential difference of 600 V exists between the plates. (a) What is the magnitude of the electric field between the plates? N/C(b) What is the magnitude of the force on an electron between the plates? N(c) How much work must be done on the electron to move it to the negative plate if it is initially positioned 2.66 mm from the positive plate? JA 6 g ball with a charge of 4 μC hangs by a thread between two oppositely charged parallel plates as shown below. The distance between the ball & the edges of the plates is much greater than the distance between the plates. Each plate has the same constant uniform charge density. A + 30° Determine the voltage between the plates. -61.9806 V X 67.8963916567 V Determine the polarity of each plate. You will not receive credit until you have correctly selected the polarities of both plates. left plate neutral right plate impossible to determine 8 mm ×You and your colleagues have been tasked with launching a weather balloon into the Earth's stratosphere via rocket ship. In order to reduce fuel usage to meet with newly imposed fuel-consumption regulations, you are hoping to use the electric interaction between charges to your advantage. You have decided on the design below. You are able to place two Q = 1.98 C charges in the rocket ship and into the launching platform so that they are separated by a distance of yo = 2.93 m. You are allowed enough fuel to boost the rocket to an initial speed of vo = 309 m/s without accounting for the extra boost from the charges. The rocket on its own has a mass of 2.095x104 kg. The more equipment you can attach to your weather balloon (which is inside the rocket), the better. What limit do you put on the mass of the weather balloon and attached equipment? You may want to know the formula for gravitational potential energy for an object of mass m and height h: Egray = mgh, where g=9.81 m/s?. Edge of…