Question

1. Find the phasors for the following voltage sources and plot them as vectors on the complex plane:

1. v1(t) = 10 * cos (2*pi*f*t – pi/3)
2. v2(t) = 12 * cos ( 2*pi*f*t + pi/4)

complete and plot in MATLAB

Answer 1

% Phasor for V1(t)
z1 = 10*exp(-1j*pi/3);

% Phosor for V2(t)
z2 = 12*exp(1j*pi/4);

% Plot phasor for V1(t)
zvect(z1);
legend('Phasor for V1(t)');
grid on
xlabel('Real-axis'); % Label the x_axis
ylabel('Imaginary-axis');% Label the y_axis
title('Phasors in complex plane with a unit circle');
hold on;

% Plot phasor for V2(t)
figure
zvect(z2,'r');
legend('Phasor for V2(t)');
grid on
xlabel('Real-axis'); % Label the x_axis
ylabel('Imaginary-axis');% Label the y_axis
title('Phasors in complex plane with a unit circle');
hold on;

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