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 --- 2459/CH3/EX3.3/Ex3_3.PNG | Bin 0 -> 6269 bytes 2459/CH3/EX3.3/Ex3_3.sce | 35 +++++++++++++++++++++++++++++++++++ 2 files changed, 35 insertions(+) create mode 100644 2459/CH3/EX3.3/Ex3_3.PNG create mode 100644 2459/CH3/EX3.3/Ex3_3.sce (limited to '2459/CH3/EX3.3') diff --git a/2459/CH3/EX3.3/Ex3_3.PNG b/2459/CH3/EX3.3/Ex3_3.PNG new file mode 100644 index 000000000..9c8e8f571 Binary files /dev/null and b/2459/CH3/EX3.3/Ex3_3.PNG differ diff --git a/2459/CH3/EX3.3/Ex3_3.sce b/2459/CH3/EX3.3/Ex3_3.sce new file mode 100644 index 000000000..542d1a2ab --- /dev/null +++ b/2459/CH3/EX3.3/Ex3_3.sce @@ -0,0 +1,35 @@ +//chapter3 +//example3.3 +//page49 + +// for constant Ec=-1.5 +Eb1=100 // V +Eb2=150 // V +Ib1=7.5d-3 // A +Ib2=12d-3 // A + +Eb_diff=Eb2-Eb1 +Ib_diff=Ib2-Ib1 + +rp=Eb_diff/Ib_diff +rp_kilo_ohm=rp/10^3 //kilo ohm + +printf("plate resistance = %.3f ohm or %.3f kilo ohm \n",rp,rp_kilo_ohm) + +// for constant Eb=150 +Ib1=5d-3 // A +Ib2=12d-3 // A +Ec1=-3 // V +Ec2=-1.5 // v + +Ib_diff=Ib2-Ib1 +Ec_diff=Ec2-Ec1 + +gm=Ib_diff/Ec_diff +gm_micro_mho=gm*10^6 //micro mho +printf("mutual conductance=%.3f mho or %.3f micro mho \n",gm,gm_micro_mho) + +mu=rp*gm +printf("amplification factor = %.3f",mu) + +//in book the answer of amplification factor i.e. 51.852 is rounded off to 52 -- cgit