Problem 19.100 µA. If the applied voltage is 2 mV at a frequency of 200 kHz,and the circuit inductance is 50 µH, find (a) the circuit resistance,and (b) the circuit capacitance.The current at resonance in a series L-C-R circuit is(a) 1=100 µA = 100 x 10-6 A; V = 2 mV = 2 × 10-3 VAt resonance, impedance Z = resistance RV.2 x 106Hence R= 20 S100 x 10³(b) At resonance XL =Xc1i.e. 2n fL =%3D2nf C

At resonance, inductive reactance is equals to capacitive reactance. Before resonance on increasing…

Answered: The current at resonance in a series…

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The current at resonance in a series L-C-R circuit is applied olta

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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Question

Problem 19.
100 µA. If the applied voltage is 2 mV at a frequency of 200 kHz,
and the circuit inductance is 50 µH, find (a) the circuit resistance,
and (b) the circuit capacitance.
The current at resonance in a series L-C-R circuit is
(a) 1=100 µA = 100 x 10-6 A; V = 2 mV = 2 × 10-3 V
At resonance, impedance Z = resistance R
V.
2 x 106
Hence R
= 20 S
100 x 10³
(b) At resonance XL =Xc
1
i.e. 2n fL =
%3D
2nf C

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