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+// To calculate required Gate source Resistance

+// Basic Electronics

+// By Debashis De

+// First Edition, 2010

+// Dorling Kindersley Pvt. Ltd. India

+// Example 8-4 in page 378

+

+clear; clc; close;

+

+// Given Data

+P=0.012; // Value of Allowable Gate Power Dissipation in watt

+Es=10; // Trigger Source Voltage in V

+slope=3*10^3; // Slope of Gate-Cathode Characteristic line

+

+// Calculations

+Ig=sqrt(P/slope); 

+Vg=slope*Ig; 

+Rs=(Es-Vg)/Ig; 

+

+printf("(a)The value of Gate Resistance for the Circuit is %0.0f ohm \n",Rs);

+printf("(b)The value of the Gate Voltage is %0.2e V \n",Vg);

+printf("(c)The value of the Gate Current is %0.2e A \n",Ig);

+

+

+// Results

+// (a) The value of Gate Resistance for the Circuit is 2 K-ohm

+// (b) The value of the Gate Voltage is 6 V

+// (c) The value of the Gate Current is 2 mA
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+(a)The value of Gate Resistance for the Circuit is 2000 ohm 

+(b)The value of the Gate Voltage is 6.00e+000 V 

+(c)The value of the Gate Current is 2.00e-003 A 

+ 
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