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4B_SP10_HW12

# 4B_SP10_HW12 - Print Assignment 4B Homework 12:false...

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4B Homework 12 *Question 1 For a certain driven series RLC circuit, the maximum generator emf is 150 V and the maximum current is 3.44 A. If the current leads the generator emf by 0.761 rad, what are the (a) impedance and (b) resistance of the circuit? (c) Is the circuit predominantly 1) capacitive or 2) inductive? Give the number of the correct answer. (a) Number 43.6 Units (b) Number 31.6 Units (c) 1 Answer a1: the number of significant digits is set to 3; the tolerance is +/-2% Answer b1: the number of significant digits is set to 3; the tolerance is +/-2% Answer c1: significant digits not applicable; exact number, no tolerance *Question 2 An alternating source drives a series RLC circuit with an emf amplitude of 6.14 V, at a phase angle of +32.0°. When the potential difference across the capacitor reaches its maximum positive value of +5.12 V, what is the potential difference across the inductor (sign included)? Number -8.37 Units V The number of significant digits is set to 3; the tolerance is +/-2% *Question 3 A series RLC circuit is driven in such a way that the maximum voltage across the inductor is 1.27 times the maximum voltage across the capacitor and 1.90 times the maximum voltage across the resistor. (a) What is φ for the circuit? The resistance is 39.8 Ω and the current amplitude is 271 mA. (b) What is the amplitude of the driving emf?

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