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A photographic flash unit consists of a capacitor previously charged by a 100V source. The average power delivered to the flash tube is 2000W and the flash lasts 0.040s. The capacitance of the capacitor is: A 40 x 10^-6 F B 80 x 10^-6 F C 160 x 10^-6 F D 80 x 10^-3 F E 160 x 10^-3 F
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Am I correct to think that the higher the charge between two plates in a parallel plate capacitor the higher the voltage difference? Is there an equation relating these difference in charge between the plants and the voltage difference between the plates?
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5.a) Two capacitors , C1 = 3 F and C2=6 F , are connected in series and charged by connecting a battery of voltage V=10V in series with them. They are then disconnected from the battery, and the loose wires are connected again. What is the final charge on them. b) Repeat problem 5(a) , and after...
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Here I 've a problem related to capacitance and its energy. The question goes like this :- A parallel plate capacitor having plate area 400 cm square. And separation between the plates 1 mm is connected to a power supply of 100 V. A dielectric slab of thickness .5 mm and dielectric constant 5 is... View more questions Search
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