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 --- 2213/CH9/EX9.3/ex_9_3.sce | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100755 2213/CH9/EX9.3/ex_9_3.sce (limited to '2213/CH9/EX9.3') diff --git a/2213/CH9/EX9.3/ex_9_3.sce b/2213/CH9/EX9.3/ex_9_3.sce new file mode 100755 index 000000000..b1c2249e2 --- /dev/null +++ b/2213/CH9/EX9.3/ex_9_3.sce @@ -0,0 +1,27 @@ +//Example 9.3.efficiency and speed +clc; +clear; +close; +//given data : +format('v',5) +V=600;// in volts +I=200;//in A +Ts=20;// in sec +R=0.1;// in ohm +E_bse=(V/2)-(I*R); +E_bp=V-(I*R); +Tse=(E_bse/E_bp)*Ts; +Tp=Ts-Tse; +Vd=V-(2*I*R); +Mi=((V*I*Tse)/(2*3600))+((V*I*Tp)/3600); +Er=((Vd/4)*I*(Tse/3600))+(((V/2)/2)*I*(Tp/3600)); +El=(I^2*R*Ts)/(3600); +Mo=Mi-Er-El; +eta=(Mo/Mi)*100; +disp("part (a)") +disp(eta,"Starting efficiency,(%) = ") +Vm=80;// in kmph +alfa=Vm/Ts; +S=alfa*Tse; +disp("part (b)") +disp(S,"speed,S(kmph) = ") -- cgit