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

---
 608/CH41/EX41.12/41_12.sce | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100755 608/CH41/EX41.12/41_12.sce

(limited to '608/CH41/EX41.12/41_12.sce')

diff --git a/608/CH41/EX41.12/41_12.sce b/608/CH41/EX41.12/41_12.sce
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+++ b/608/CH41/EX41.12/41_12.sce
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+//Problem 41.12: A symmetrical pi-attenuator pad has a series arm of resistance 1000 ohm and shunt arms each of 500ohm . Determine (a) its characteristic impedance, and (b) the insertion loss (in decibels) when feeding a matched load..
+
+//initializing the variables:
+R1 = 1000; // in ohm
+R2 = 500; // in ohm
+I1 = 1; // in amperes (lets say)
+
+//calculation:
+//characteristic impedance of a symmetrical attenuator
+R0 = (R1*(R2^2)/(R1 + 2*R2))^0.5
+//current Ix
+Ix = (R2/(R2 + R1 + (R2*R0/(R2 + R0))))*I1
+//current I2
+I2 = (R2/(R2 + R0))*Ix
+ri = I1/I2; // retio of currents
+//insertion loss 
+il = 20*log10(ri)
+
+printf("\n\n Result \n\n")
+printf("\n characteristic impedance is %.0f ohm",R0)
+printf("\n insertion loss is %.2f dB",il)
\ No newline at end of file
-- 
cgit