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// Exa 7.21
clc;
clear;
// Given
// A 5-plate transducer
n = 5; // no of plates
l = 20*10^-3; // length of plate in m
b = 20*10^-3; // breadth of plate in m
d = 0.25*10^-3; // separation between plates in m
// Solution
A = l*b; // Area in mm^2
er = 1; // Relative dielectric constant
e0 = 8.854*10^-12; // Absolute dielectric constant in F/m
S = (n-1)*e0*er*A/d^2;
printf('Sensitivity of the arrangement = %.3f * 10^-9 F/m \n',S*10^9);
// The answer provided in the textbook is wrong
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