Question 1 20 Marks Consider The Following System 120 15 5 5 1511x1 1100 N1 20 5 X2 N 15 20 Lx 140 Where N Is 1 (56.79 KiB) Viewed 66 times
QUESTION 1 (20 MARKS) Consider the following system 120 15 5 5 1511X1 1100 + N1 20 5 ||X2| = N 15 20) LX 140 where N is the last two digit of the matrix number. i. Use Gaussian Elimination method to find the unknown vector {X). (C01:P01 - 15 marks) ii. Use LU Decomposition method to verify the (X) obtained. (C01:P01-5 marks) Zoom
Supposed that you are measuring a set of batteries voltage as a function of time across the electronic test rig. The rig is using a 5 ohm load where different types of batteries are tested. Results for each tests with a nominal rating of 1.5 volts, is tabulated below. Table Q2 t(hours) 0 1 1.5 2.5 4 V(volts) Duracell 1.40 1.30 1.00 0.40 0.05 Energizer 1.40 1.17 1.10 1.05 0.90 Cap Ayam 1.35 1.15 1.05 1.00 0.40 Ketum 1.45 1.41 1.30 1.20 0.20 Hualawei 2.00 1.00 0.45 0.10 0.05 1) Develop the suitable numerical model to estimate the voltage within the given discharging hours for Duracell and Cap Ayam using least-squares second-order polynomial method. (CO1:P01-15 marks) ii) Predict the battery voltage when t = 1.7 hours for Duracell and Cap Ayam. (CO1:P01-5 marks)
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