Question

7. Write a function M-file that will compute the equivalent resistance for a series or parallel combination of an arbitrary number of resistors. Your function should: accept as input an arbitrary number of resistor values, stored in a vector ask the user to input 'p' if the resistors are in parallel; ask the user to input 's' if the resistors are in series; output the equivalent resistance for the series or parallel combination of resistors; output an error statement if the user input is not an ‘s' or ‘p. . . . Hint: you could use a for-loop (to go through all the resistors in the vector) and either if-statements or switch-statements to test for the different user inputs.

Please use MATLAB to solve this, thanks

Answer 1

Matlab function Resistance.m

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% calculate resistance in series or parallel
function [ ] = Resistance()

res=input('enter resistance in form of row vector : ');
disp('Enter p if resistors are in parallel');
disp('Enter s if resistors are in serial');
n= input('enter your input','s');
R=0;
switch n
case 'p'
for i=1:length(res)
R=R+1/res(i);  
end
R=1/R;
fprintf('Resistance in parallel is %0.2f\n',R);
  
case 's'
for i=1:length(res)
R=R+res(i);  
end
fprintf('Resistance in serial is %0.2f\n',R);
  
otherwise
disp('Error: Wrong input');   

end % end of switch

end

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Output

MATLAB R2013a PLOTS Seorch Documentation O Preferences Set Path Paralel New Variable Analyze Code Find Files Open Variable ▼ Run and Time Request Support Smuink Layout Slept New Opens Compare Import Save Help Script Data Workspace E lear workspace ▼ Clear Commands ▼ Library ▼ Add-ons ▼ Current Folder Command Window Workspace Name ▲ Resistance Name Value Min Ma E 'anaconda 田山.android enter rea1stance in torm of row vector [8 8 41 Enter p if resistors are in parallei Enter 3 1 reai3tors are in serial enter your inputp Resistance in parallel 13 2.00 困ぷ.gradle 困ぷ.idlerc Resistance enter rea13tance in form of row vector [8 8 41 Enter p if resistors are in parallei Enter 3 1 reai3tors are in serial enter your inputs Resistance in erial 13 20.00 田山.PyCharm2016.2 OtWebEngineProcess 田山AppData Application Data Resistance enter rea13tance in form of row vector [8 8 41 Enter p if resistors are in parallei Enter 3 1 reai3tors are in serial enter your inputw Error: Wrong input Contacts Cookies B Desktop Command Hist clear -cle 田山IntelGraphicsProfiles ㄧ田ぷInterText 困ぷLinks Resistance 8 8 4] 田山mosesgui Registance Music 8 8 4] Resigtance EPictures [ 8 4] ENG 11:49 AM 10/26/2017 兵