A d 4 identical plates, each with area A, is placed parallel to each other with same separation d. Plates are then connected to the terminals of a charging battery in such a way that two successive plates are oppositely charged. This can be considered as a capacitor. The potential difference on the battery is V. (a) What is the magnitude of the electric field between the plates? (Assume V > 0.) E (b) What is the energy density between the plates? u = (c) What is the total energy of the capacitor? U = (d) What is the capacitance of the capacitor? (Hint: You can use part (c).) C =
A d 4 identical plates, each with area A, is placed parallel to each other with same separation d. Plates are then connected to the terminals of a charging battery in such a way that two successive plates are oppositely charged. This can be considered as a capacitor. The potential difference on the battery is V. (a) What is the magnitude of the electric field between the plates? (Assume V > 0.) E (b) What is the energy density between the plates? u = (c) What is the total energy of the capacitor? U = (d) What is the capacitance of the capacitor? (Hint: You can use part (c).) C =
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