Question

what is b plz

. Consider a disconnected parallel plate capacitor with area Ao and width --4, 3do. There is a magnitude of charge density g, on each plate. For this problem you may assume the plates are large enough to neglect fringing fields. 3d How much energy is stored in the capacitor?2 z a. For the purpose of simplifying the math, assign this value 3E. A large conducting slab of area A and width do is now placed within the capacitor. How does the potential energy stored in the capacitor change? Explain your reasoning b. Complete the energy bar diagram at right for the new potential energy and the change in potential energy for the Plate-Slab system. c. Energy diagram for Plate-Slab system 3E, d. The energy difference can also be determined using a work-energy approach i. Consider the charges of the conducting slab alone. How much energy is stored in that system? You can look at either the induced field or treat the slab as its own capacitor. Energy diagram for Slab system ii. How much work was done by the "external" electric field on the charges of the conducting slab? (Hint: This is equivalent to having the electric field pull a positive charge from the bottom to the top in order to cause this charge separation.) 0 ii. Complete the energy bar diagram at right for the slab system. should show that the energy lost when inserting the slab should be the same! If ot, resolve any inconsistencies.

Answer 1

o A a eoA Potentia eo av gdo 3 k 3 k Po teushal