Two parallel plates with a dielectric (k = 3.75) in between are separated by a distance of 2.00 mm. What must be the area of each plate if the charge on each plate is 775 nC and the electric field between the plates is 8.84 ? m 0.26 m? 2.63 x 10 -4 2.64 x 10-4 2.64 m?
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- Two parallel plates are placed 1 mm apart from each other. Equal and opposite charges are placed on the two plates until there is a voltage difference of 50 volts between them. a) What is the electric field between the plates? b) What is the charge density (in C/m^2) on each plate?Sphere A has a charge of 5nC and a radius of 1.5m. Sphere B has a charge of -2nC and a radius of 4m. The spheres are made of conducting material. If the spheres then touch, and are then moved apart: a) What is the resulting charge on each sphere? b) What is the magnitude of the electric field at the surface of each sphere?An electric dipole consists of charges +13e and -13e separated by a distance d = 1.863 nm. A charge Q = +8e lies a distance of z = 801.15 nm away from the dipole along the dipole axis. What is the magnitude of the force between the dipole and the +8e chárge?. (in N) -16 OH: 1.11×10¯15| OA: 8.26x101/|| OB: 1.20×10-16 OC: 1.74×10-16 OD: 2.52×10-16OE: 3.65×10-16|OF: 5.29×10-16 Submit Answer Tries 0/99 OG: 7.68×10
- how many electrons must be removed from a neutral , isolated conducting sphere to give it a positive charge of 1.0 x 10 ^6 C.An electron initially at rest is released in a uniform electric field, the electron is accelerated horizontally to the right, traveling 4.77 m in the first 3.24x10-6s after being released, what is the magnitude of the electric field? electron q: 1.602x10-19 c m: 9.11x10-31 kg. Ans in N/CTwo metal spheres, each of radius 2.6 cm, have a center-to-center separation of 2.8 m. Sphere 1 has a charge of +1.2 × 10-8 C; sphere 2 has a charge of -3.3 x 10-8 C. Assume that the separation is large enough for us to assume that the charge on each sphere is uniformly distributed (the spheres do not affect each other). With V= 0 at infinity, calculate in volts (a) the potential at the point halfway between their centers and the potential on the surface of (b) sphere 1 and (c) sphere 2. (a) Number (b) Number i (c) Number i Units Units Units
- The figure below gives the magnitude of the electric field inside and outside a sphere with a uniformly distributed positive charge. What is the charge on the sphere? ______________CPoint charges of 20.2 µC and 44.7 µC are placed 0.48 m apart. At what point along the line between them is the electric field zero? What is the magnitude and direction of electric field halfway between them? There is no direction because the magnitude of the electric field is zero toward the 20.2 µC charge toward the 44.7 µC chargeWhen the electric field in air exceeds a value of EDB = 3*10^6V/m (the dielectric strength), dielectric breakdown occurs and the air becomes ionized. If the electric field at the surface of a conductor exceeds this value, the ionization of the air will remove charge from the conductor until the electric field no longer exceeds 3*10^6V/m. What is the maximum charge that can be held on a conducting sphere in air in terms of the sphere's radius R and the dielectric strength of air EDB? (in terms, no specific numbers)
- Consider the electric dipole shown in the figure. (a) Show that the electric field at a distant point on the x-axis is Ex = 4kqa/x3 (b) Where do you think you might find the expression of electric field from a dipole useful?You hold a ruler that has a charge on its tip 6.00 cm above a small piece of tissue paper to see if it can be picked up. The ruler has -14.0 µC of charge. The tissue has 1.00 g of mass. What is the minimum charge required to pick up the tissue paper? μCPlastic beads can often carry a small charge and therefore can generate electric fields. Three beads are oriented such that 92 is between 9₁ and 93. The sum of the charge on 9₁ and 92 is 91 +92 = -8.3 μC, and the net charge of the system of all three beads is zero. E field lines What charge does each bead carry? μC 91 = 92 = 93 = 000 μC μC