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//===========================================================================
//chapter 5 example 1
clc;clear all;
//variable declaration
K = 24*10^-6; //spring constant in Nm/radian
I = 5; //current in A
//calculations
//L = 20+10*theta - 2*(theta^2)
//partial differentiate w.r.t to theta
//dL/dtheta = x = 10- 4*theta
//dL/dtheta = 2*K*theta/(I^2)
//x = 10-4*theta
//y = theta/x
y = ((I^2)/(2*K))*10^-6;
theta = (10*y)/(1+(4*y)); //defelction for current in radians
theta1 = ((theta*180)/(%pi));
//result
mprintf("deflection = %3.1f °',theta1);
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