//Caption:Calculate the gap transit angle //Exa:8.12 clc; clear; close; V_o=1000;//Anode voltage(in volts) gap=0.002;//in m f=5*10^9;//in Hz L=2.463*10^-3;//length of drift region (in m) u_o=5.93*10^5*sqrt(V_o);//in m/s Theeta_g=2*%pi*f*2*10^-3/u_o;//radians disp(Theeta_g,'Transit angle(in radians) =');