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An L-R-C circuit has L = 0.490 H , C = 2.95×10-5 F , and a...

An L-R-C circuit has L = 0.490 H , C = 2.95×10-5 F , and a resistance R. A) What is the angular frequency of the circuit when R=0? B) What value must R have to give a percent decrease in angular frequency of 5.0 % compared to the value calculated in part (A)?

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ANSWER: (A) We have a RLC circuit, with k = 0.4904 and c= 2.9510% [ and R=0. In this case we have a simple LC circut , with aThe angular frequency of the oscillations is given by divide both sides Bay Wo = 1/8he, so we get Cate - RC (slunce iba [squa

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