How much energy is stored by the electric field between two square plates, 9.3 cm on a side, separated by a 2.5-mm air gap? The charges on the plates are equal and opposite and of magnitude 12 nC. Express your answer using two significant figures and include the appropriate units. µA ? Value Units PE =
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- Just CA cylindrical capacitor consists of a solid conducting cylinder with a radius of 0.260 cm and a coaxial conducting tube around it. There is air between the conductors and the length of the cylinder is 12.5 cm. If the capacity of the device is 38.5 pF; Part A: Calculate the inner radius of the outer tube.(r=?) Part B: What is the stored charge per unit length, λ when the shaver is loaded with 130 V? (λ=?)Consider the diagram below of two square-plate capacitors. For the capacitor on the right, if the voltage is held constant by a voltage source and the plates are separated by a factor xºd, what is the new charge on the plates, Q: after the separation? + Letx-3 Express your answer in terms of Q. For example: 5Q or 5 Q. Do not use or any multiplication symbols. If your answer has a decimal, round to one decimal place. |Q' = ? Q' = ? xd
- An electron is fired at a speed v 4.3 x 10 m/s and at an angle 8 = 39.7 between two parallel conducting plates as shown in the figure. If s 1.7 mm and the voltage difference between the plates is AV= 99.8 V, determine how close, w. the electron will get to the bottom plate. Put your answer in meters and include at 6 decimal places in your answer. Do not include units. The x-axis of the coordinate system is in the middle of the parallel plate capacitor. Round your answer to 6 decimal places.The inner and outer surfaces of a cell membrane carry a negative and positive charge, respectively. Bccause of these chargex a potential difference of about0.078 Vexists across the membrane. The thickness of the membrane is7.8×107 m. What is the magnitude of the electric field in the membrane? Number i Units Ne :. Please type answer note write by hend.The potential in a region of space due to a charge distribution is given by the expression V = ax2z + bxy - cz? where a = -7.00 V/m3, b = 5.00 V/m2, and c = 7.00 V/m2. What is the electric field vector at the point (0, -2.00, -8.00) m? Express your answer in vector form. E V/m Additional Materials O eBook
- A water molecule is built as an isosceles triangle; the two hydrogen atoms are separated by 1.5x10-10m, and the oxygen is a distance 1x10-10m from either of the hydrogens. Treating the hydrogens as point charges, each of +e, and the oxygen as a point charge of -2e, estimate the total electric potential energy stored in this molecule. a. 10.76x10^-18 J b. zero c. -7.69x10^-18JItem 15 When a nerve impulse propagates along a nerve cell, the electric field within the cell membrane changes from 7.0×105 N/C in one direction to 3.1×105 N/C in the other direction. Part A Approximating the cell membrane as a parallel-plate capacitor, find the magnitude of the change in charge density on the walls on the cell membrane. Express your answer using two significant figures. ΠΙΑΣΦΑ |Aσ| = Submit Request Answer ? C/m²The electric field strength between the plates of a simple air capacitor is equal to the voltage across the plates divided by the distance between them. When a kV voltage of 135. V is put across the plates of such a capacitor an electric field strength of 1.1 is measured. cm Write an equation that will let you calculate the distance d between the plates. Your equation should contain only symbols. Be sure you define each symbol. Your equation: d=0 Definitions of your symbols: kV = 1.1 cm 135. V Explanation Check 20 E A S tv Ⓒ2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessib
- Please fill out the template with the work for this problem. Note that you need to have a picture, a list of knowns and unknowns, the general equation/s you will use, and the math steps to solve for the unknown, Only plug in the numbers after you have solved for the unknown, and the answer with units included. Problem 1: A negative charge of q = -8.3 × 10-17C and m = 1.2 × 10-26 kg enters a magnetic field B = 1.3 T with initial velocity v = 410 m/s, as shown in the figure. The magnetic field points into the screen. Calculate the magnitude of the magnetic force F on the charge, in newtons.In an experiment you observed the attraction of a charged object to the wall. It correctly depicts the microscopic level mechanism for this observation. Identify the correct statements that apply when the object is negatively charged. PLEASE SELECT ALL THAT APPLYA parallel plate capacitor is designed as shown in Fig.The capacitor has a cross-sectional area of A = (1,2 × 1,2) cm2, the distance between the plates d= 2 mm, where the dielectric constant k1 = 4, k2 = 6, and k3 = 2.a. Describe the capacitor combination (series, parallel) formed byall three dielectric materials.b. Calculate the total capacitance of the capacitor?c. If the capacitor is connected with a potential difference V = 5 voltsthen determine the charge and energy stored in the capacitorthe?