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Your roommate, also taking physics, calls from the college radio station where a small disaster has occurred. The transmitter has malfunctioned, and a capacitor is needed to make repairs. One cannot be obtained from the transmitter manufacturer for several days. Your roommate has fashioned a capacitor out of two sheets of metal, with area 5.0 cm^2, separated by a thin 1.0 mm sheet of glass. A voltage of 120 V is placed across the homemade capacitor.
a. Calculate the capacitance. The resistivity of the glass is rho = 1.2 x 10^13 ohms*m , and the dielectric constant is k=5.6 . Hint: Remember that I = dQ/dt.
b. Calculate amount of energy stored in the capacitor.
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