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// Exa 1.34
clc;
clear;
// Given
I1 = 10; // Current which produces deflection of 90 degrees
Theta1 = 90; // In degrees
I2 = 5; // Current for which theta is to be calculated
// Solution
//The deflection which produces a current of 1A when instrument is spring controlled
// Tc ∝ theta
// theta ∝ I^2
theta2 = (I2/I1)^2 * Theta1 ;
printf('The deflection which produces a current of 1A when instrument is spring controlled is equal to = %.1f degrees \n',theta2);
//The deflection which produces a current of 1A when instrument is gravity controlled
// Tc ∝ sin(theta)
// theta ∝ I^2
theta2_gravity = asind((I2/I1)^2 *sind(Theta1)) ;
printf(' The deflection which produces a current of 1A when instrument is gravity controlled = %.2f degrees \n',theta2_gravity);
// The value of I given as 1A in problem statement is incorrect to satisfy the problem answer(correct value is 5A)
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