Problem 2 (C. Which of the points shown in the diagram are at the same potential? 4 Select one: O2,3 and 5 O 2 and 5 O 2 and 3 O l and 4
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- Part A A typical cell has a membrane potential of -70 mV, meaning that the potential inside the cell is 70 mV less than the potential outside due to a layer of negative charge on the inner surface of the cell wall and a layer of positive charge on the outer surface. This effectively makes the cell wall a charged capacitor. Because a cell's diameter is much larger than the wall thickness, it is reasonable to ignore the curvature of the cell and think of it as a parallel-plate capacitor. How much energy stored in the electric field of a 50-um-diameter cell with a 7.0-nm-thick cell wall whose dielectric constant is 9.0? Express your answer to two significant figures and include the appropriate units. HA ? Uc = Value Units Submit Request Answer < Return to Assignment Provide FeedbackSubject: Electrmagnetics A capacitor consists of three concentric spherical shells with radii R, 2R, and 3R. The inner and outer shells are connected by a wire so they are at the same potential. The shells start neutral, and then a battery transfers charge from the middle shell to the inner and outer shells.a. If the final charge on the middle shell is -Q, what are the charges on the inner and outer shells? Your answer should be a function of Q.b. Determine the electrostatic energy of this system in terms of Q.2. Given the potential field V = 50(x² - y²)V at point P (-4, 1, 5) that is stipulated to lie on a conductor-free space boundary. Find potential V, electric field Ē,electric field intensity D and ps at point P. Write the equation of the conductor surface.
- A solid insulating sphere with a radius of a = 3 m has a charge of Q = 8 µC uniformly distributed throughout its volume. For the problems below, follow the standard convention that the electric potential is zero at infinity. 1) Using Gauss's Law, derive a formula for the electric field inside of the insulator as a function of radius. Which answer below correctly describes that electric field? Today, 11:43:16 PM OKQ/? OKQ/a? OKQA/r? OkQr/a? OKQr/a Submit 2) What is the electric potential at a radius of 4 m? Submit 3) What is the electric potential at a radius of 2 m? SubmitCan you help me to solve this?