plot ebers-moll equations in matlab

main.m
% Define constants
Is = 1e-15;
Vt = 0.025;
betaF = 100;
betaR = 1;
VBE = linspace(0,1,100);
VCE = 2; % can be changed

% Ebers-Moll equations
IC_F = Is .* (exp(VBE./Vt) - 1);
IC_R = Is .* (exp(VCE./Vt) - 1);

% Plot
figure;
plot(VBE, IC_F, 'r', 'LineWidth', 2);
hold on;
plot(VBE, IC_R/betaR, 'b', 'LineWidth', 2);
xlabel('V_{BE} (Volts)');
ylabel('Collector Current (Amps)');
legend('Forward Active Mode (IC_F)', 'Reverse Active Mode (IC_R / β_R)');
title('Ebers-Moll Equations');
grid on;
hold off;
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