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- A parallel plate capacitor of 1.45 10 Farads Connected to a power supply that keeps a 36 V plates a constant potenhal difference of behween the → How Much chage is on each plate? Now, a a of matenial (dielectnie constant 2.75) is placed behreen the piece plales, complekely filling the space in behween them. increase or decrease during he inserhon? How > How Much did he energy much was stored the capacitor before and after? inWhat is the capacitance if 6.242x1018 electrons is deposited on the plates by a potential difference of 1V across the plates? (Comprehension) A. 1 V В. 1 А Oc. 1 F OD. 1 WHow many electrons have to be moved by a car battery containing 7.20×105 J at 12 V to reduce the energy by 1%?
- A research Van de Graaff generator has a 2.00-mdiameter metal sphere with a charge of 5.00 mC on it. (a) What is the potential near its surface? (b) At what distance from its center is the potential 1.00 MV? (c) An oxygen atom with three missing electrons is released near the Van deGraaff generator. What is its energy in MeV at this distance?Four electrons are located at the corners of a square 10.0 nmnm on a side, with an alpha particle at its midpoint. How much work is done by the Coulomb force when the alpha particle moves to the midpoint of one of the sides of the square? Express your answer in joules.Conduc-Thor-s. Thor has two square prism conductors that are made of the same ohmic material and with properties indicated below. Conductor Length | Cross-Section Side Length Alpha L Beta L/2 s/4 Suppose both conductors are subject to the same potential difference AV across their length while keeping their temperatures fixed. Which of the following is the correct relation between the electric currents, Ia and IB, through Alpha and Beta? O A. Ia = 8IB O B. 8Ia = Ig O. Ia = 4I8 O D. 4Ig = Ig Clear my choice
- If 48 eV of energy is required to move a charge through a potential difference of 3.2 V, deter-mine the charge involved.A research Van de Graaff generator has a 2.00-mdiameter metal sphere with a charge of 5.00 mC on it. (a) What is the potential near its surface? (b) At what distance from its center is the potential 1.00 MV? (c) An oxygen atom with three missing electrons is released near the Van de Graaff generator. What is its energy in MeV when the atom is at the distance found in part b?Problem 6: The voltage across a membrane forming a cell wall is 83 mV and the membrane is 9.25 nm thick. What is the electric field strength in the cell wall, in volts per meter? E = sin() cotan() atan() acotan() cosh() tanh() cos() asin() O Degrees tan() π ( ) 789 acos() E ^^^ 4 5 6 sinh() 1 1 2 3 cotanh() + 0 Radians VOBACKSPACE HOME END DEL CLEAR
- What quantity of electrons that will move from the positive terminal to a negative terminal of a battery whose emf is 1.5 volts during the conversion of 1/4 joule of chemical energy?(b) The density of iron is 7.85 g/cm3, and its atomic mass is 55.8. Assuming each iron atom contributes two mobile electrons to the metal, what is the number density of free charges in the wire, in electrons/m3? (Enter your answer without units.) (c) Use your results to calculate the drift speed (i.e., the average net speed) of the electrons in the wire. (d) Due to thermal motion, the electrons at room temperature are randomly traveling to and fro at 1.13×105 m/s, even without any current. What fraction is the current's drift speed, compared to the random thermal motion?... Path of trajectory AV w An electron is fired at a speed v¡ = 3.4 x 106 m/s and at an angle 0; = 30.5° between two parallel conducting plates as shown in the figure. If s = 1.5 mm and the voltage difference between the plates is AV = 98 V, determine how close, w, the electron will get to the %3D %3D 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.