Question

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Task 1 The equivalent resistance Req of four resistors R1, R2, R3 and R4 connected in series is given as eq.series R1 R2 R3 R4. The equivalent resistance Req of four resistors R1, R2, R3 and R4 connected in parallel is given as q.parallel K1R2R3 R Write an m-file that does the following in order: Prompt the user for the type of connection (e.g. user should enter "1" for series and "2" for parallel) Prompt the user to enter the number of resistors, n Prompt the user to enter the values of the resistors in vector form, R Check if the user has entered the correct number of resistors. If not, your program should end with an error message stating incorrect input. 1. 2. 3. 4. 5. Compute the equivalent resistance and output the following statement using fprintf): The equivalent resistance of X resistors of values X, X, X connected in X is X. Here X represents the appropriate variables E.g. The equivalent resistance of 3 resistors of values 5, 7, 9 connected in series is 21. Hint: you may need to use the error() function Hint: you may need to use the num2str() function. Activate W Go to Settings Task 5 The average atmospheric pressure on Earth is approximated as a function of altitude by the relation Patm-101.325a - 0.022562)5256 Where Patm is in kPa and z is in km. a) Create a function that computes the outputs Patm provided z is known. b) Create a separate m-file which produces a z vector from 0 to 10km with increments of 25m Plot Patm against z as a red dashed line, remembering to label your plot. Turn the grid on. On the same plot you should mark with blue circles the pressure values for Perisher Valley (F|740m), Hotham heights (z=1700m), Canberra (z-660m), Yamdrok Lake (z=4441m), Lipulekh Pass (z-5334m), Jejudo (z-1950m) and the top of Mount Everest (z-8848m) c)

Answer 1

type input ("\nSelect type of connection \n 1: Series \n 2: Parallel \nEnter Choice : "); n - input ("nEnter the number of resistors:") R -input ("\nEnter Resistors values in vector form [R1,R2,...] : ") if length (R) n error("Incorrect Input") end initial-str "\nThe Equivalent resistance of %d re313tor3"; % compiling result string as we proceed switch type сазе 1 Series connectstr = " connected in 3erie3 13:8.3f\n"; % 2nd part of result string - сазе 2 % Parallel Reqm (R.-1)11: connect-str = " connected in parallel 133.3f\n"; otherwise Invalid 3election error ("Incorrect selection for connection type" end result_str-initial_str+connect_str; printf (result_str,n,Req); % creating final string % printing final string

Command Windo >> EqResistance Select type of connection 1:Series 2: Parallel Enter Choice: 1 Enter the number of resistors:3 Enter Resistozs values in vector torm (RL,R2,. s 7 91 f The Equivalent resistance of 3 resistors connected in series is:21.000

Question 2:

Function:

function P_atm -atm pressure (2) P atm-101.325.(10.02256z).5.256 end

Script:

z-0:25 10A-3:10: 2 Per 1740: z Hot - 1700: z_Can - 660: zYam 4441; z_Lip-5334; - Jej = 1950; z_Mount -8848; zl。с = (10^-3)*[z Per z Hot z Can z Yam z Lip z Jen z Mount); plot (z,atm_pressure (z),r,z_loc,atm_pressure (z_1loc), "bo") xlabel ("Altitude [km]") ylabel ("Average Atmospheric Pressure [kPa]") title("Atmospheric Pressure vs. Altitude" grid on

Atmospheric Pressure vs. Altitude 110 100ト , 90 T 80 으 70 60 50 40 30 20 0 1 234 5 6 789 10 Altitude [km]