Question

USE MATLAB PLEASE

Q4) (15 pts) An RLC circuit with an alternating voltage source is shown. The source voltage v, is given by vs = Vm sin(@dt), where on = 21fd, in which fo is the driving frequency. The ampli- tude of the current, 1, in this circuit is given by: Vm I = = R-+[waL-1/(waC)]* where R and C are the resistance of the resistor and capacitance of the capacitor, respectively. For the circuit in the figure C = 15 x 10-°F, L = 240 x 10-H, R = 22 12, and Vm = 26V. Plot I as a function of f for 60 < f <110 Hz. Using MATLAB's built-in function fminbnd, determine the frequency where I is maximum and the corresponding value of I.

Answer 1

`Hey,

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clc
clear all
close all
R=22;
C=15E-6;
L=240e-3;
Vm=26;
wd=@(f) 2*pi*f;
f=@(fs) Vm./sqrt(R^2+(wd(fs)*L-1./(wd(fs)*C)).^2);
g=@(fs) -f(fs);
[f_min,I_min]=fminbnd(g,60,110);
f_min
I_min=-I_min
fplot(f,[60,110]);

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