From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001 From: priyanka Date: Wed, 24 Jun 2015 15:03:17 +0530 Subject: initial commit / add all books --- 728/CH8/EX8.8/Ex8_8.sce | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100755 728/CH8/EX8.8/Ex8_8.sce (limited to '728/CH8/EX8.8/Ex8_8.sce') diff --git a/728/CH8/EX8.8/Ex8_8.sce b/728/CH8/EX8.8/Ex8_8.sce new file mode 100755 index 000000000..47ced396b --- /dev/null +++ b/728/CH8/EX8.8/Ex8_8.sce @@ -0,0 +1,20 @@ +//Caption:Calculate (i)-Hull cut-off voltage ,(ii)-cut-off magnetic flux density if beam voltage V_o is 6000V, (iii)-cyclotron frequency in GHz +//Exa:8.8 +clc; +clear; +close; +e_m_ratio=1.759*10^11;//(e/m) +R_a=0.15;//in m +R_o=0.45;//in m +B_o=1.2*10^-3;//in weber/m^2 +V_o={(e_m_ratio)*B_o^2*R_o^2*[1-(R_a/R_o)^2]^2}/8; +//Given: +V=6000;//in volts +B_c=sqrt(8*V/e_m_ratio)/[[1-(R_a/R_o)^2]*(R_o)];//in weber/m^2 +w_c=(e_m_ratio)*B_o; +f_c=w_c/(2*%pi);//in Hz +disp(V_o,'Cut-off voltage (in volts) ='); +disp(B_c*10^5,'Cut-off magnetic flux density (in milli weber/sq. m) ='); +disp(f_c*10^-9,'Cyclotron frequency (in GHz) ='); + +//Answer in book is wrongly given as: f_c=0.336Hz & V_o=50.666 kV \ No newline at end of file -- cgit