1. An AC generator is connected to a "black box" through a pair of terminals. The box contains an RLC circuit, whose elements and connections we do not know. Measurements outside the box show: v(t) = (75.0 V)sin (wt), and i(t) = (1.20 A)sin (wt + 42°). 2. i(t) a) Does the current lead or lag the source voltage? b) Is the circuit in the box in resonance? Explain. c) Must there be a capacitor in the box? Explain.

1. An AC generator is connected to a "black box" through a pair of terminals. The box contains an RLC circuit, whose elements and connections we do not know. Measurements outside the box show: v(t) = (75.0 V)sin (wt), and i(t) = (1.20 A)sin (wt + 42°). 2. i(t) a) Does the current lead or lag the source voltage? b) Is the circuit in the box in resonance? Explain. c) Must there be a capacitor in the box? Explain.

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter21: Alternating-Current Circuits And Electromagnetic Waves

Section: Chapter Questions

Problem 36P: Consider a series RLC circuit with R = 25 , L = 6.0 mH, and C = 25 F. The circuit is connected to a...

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