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diff --git a/728/CH8/EX8.14/Ex8_14.txt b/728/CH8/EX8.14/Ex8_14.txt
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+//Caption:Calculate (i)-cyclotron angular frequency, (ii)-cut-off voltage, (iii)-cut-off magnetic flux
+//Exa:8.14
+clc;
+clear;
+close;
+e_m_ratio=1.759*10^11;//(e/m)
+a=0.04;
+b=0.08;
+V_o=30*10^3;//in volts
+I_o=80;//in A
+B_o=0.01;//in weber/sq.m
+w=(e_m_ratio)*B_o;
+disp(w,'Cyclotron angular frequency( in rad/s) =');
+V_c={(e_m_ratio)*B_o^2*b^2*[1-(a/b)^2]^2}/8;
+disp(V_c,'Cut-off voltage (in volts) =');
+B_c=sqrt(8*V_o/e_m_ratio)/[[1-(a/b)^2]*(b)];//in weber/m^2
+disp(B_c*10^3,'Cut-off magnetic flux density (in milli weber/sq. m) =');
+\ No newline at end of file