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 --- 1938/CH3/EX3.4/3_4.sce | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) create mode 100755 1938/CH3/EX3.4/3_4.sce (limited to '1938/CH3/EX3.4') diff --git a/1938/CH3/EX3.4/3_4.sce b/1938/CH3/EX3.4/3_4.sce new file mode 100755 index 000000000..5f13b312b --- /dev/null +++ b/1938/CH3/EX3.4/3_4.sce @@ -0,0 +1,16 @@ +clc,clear +printf('Example 3.4\n\n') + +W1=9.1 //Tension on tight side +W2=0.8 //Tension on slack side +I=10 //Total_current +V=110 //Supply voltage +R=7.5/100 //Radius of p-ulley in metres +N=1320 //speed in r.p.m +T_sh=(W1-W2)*9.81*R //9.81 is the accelration due to gravity +omega=(2*%pi*N/60) +P_out=T_sh*omega +P_in=V*I + +efficiency=100*P_out/P_in +printf('Full load Efficiency is %.2f percent',efficiency) -- cgit