From 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 Mon Sep 17 00:00:00 2001 From: prashantsinalkar Date: Tue, 10 Oct 2017 12:27:19 +0530 Subject: initial commit / add all books --- 3710/CH7/EX7.4/Ex7_4.sce | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 3710/CH7/EX7.4/Ex7_4.sce (limited to '3710/CH7/EX7.4/Ex7_4.sce') diff --git a/3710/CH7/EX7.4/Ex7_4.sce b/3710/CH7/EX7.4/Ex7_4.sce new file mode 100644 index 000000000..7b1f75e0d --- /dev/null +++ b/3710/CH7/EX7.4/Ex7_4.sce @@ -0,0 +1,23 @@ +//Example 7.4, Page Number 311 +//Noise in photomultipliers +clc; + +T=300 //Temperature in Kelvin +lr=10**3 //Load resistor in ohms +bw=10**3 //Bandwidth in hertz +k=1.38*(10**-23) //Boltzman Constant in meter square kilogram per second square Kelvin +i=10**-14 //Photomultiplier current in Amperes +e=1.6*(10**-19) //Charge of an electron in Coulombs +g=10**7 //Photomultiplier Gain + +//From equation 7.14 +V=sqrt(4*k*T*bw) //V is the shot noise voltge + +//From equation 7.12 +is=sqrt(2*i*e*bw) //is is the shot noise current in Amperes + +V1=is*g*lr //V1 is the voltage observed across load resistance + +mprintf("The RMS Value of the Voltage is:%.1e V\n",V) +mprintf(" The Shot Noise Current is:%.1e A\n",is) +mprintf(" The Shot Noise Voltage across load resistor is:%.1e V",V1) -- cgit