Brac University Electrical and Electronic Engineering Assignment 1 PDF

Brac University Department of Electrical and Electronic Engineering EEE 101/201/ECE 101/201 Fall 2024 Total Marks: 200...

Brac University Department of Electrical and Electronic Engineering EEE 101/201/ECE 101/201 Fall 2024 Total Marks: 200 Assignment 1 [Note: In case there is any missing value in the components. For current source take 5A as current value, for voltage source take 10V as voltage value and for resistance take 10 ohm] 1. A constant current of 6 A for 10 hours is required to charge an automotive battery. If the terminal voltage is 4+t V, where t is in hours, (a) How much charge is transported as a result of the charging? (b) How much energy is expended? (c) How much does the charging cost? Assume electricity costs 50 taka/kWh. 2. (a) State the Ohm’s Law, Kirchoff’s 1st and 2nd Law (b)Find the equivalent resistance Rcd. Fig. for question 2 3. (a) Why does the resistor become redundant when connected to a shorted line? (b) Value of all the resistance is 10 ohm, Vs=20V. Find the equivalent resistance and the current passing through the circuit. Fig. for question 3  4. If the value of R=30 ohm and Vab= 15V. Calculate the power absorbed by the 180 ohm. Fig for question 4 5. What is the value of R so that the circuit analysis becomes consistent with the constraint that the power absorbed is equal to power delivered? [CO2] Fig. for question 5 Here, Independent voltage source is providing 20 V 6. (a) Calculate nodal voltage at VA,VB,VC. (b) Replace 7ohm with VAB=-20V. Calculate the nodal voltage. Fig. for question 6 7. Find io and vo using nodal analysis. [CO2] Fig. for question 7 Here, Vs= 120v  8. (a) Find the difference between Loop and Mesh. (b) Find io using Mesh Analysis. Fig. for question 8 9. (a) How many Mesh are present in this circuit? (b) Find the mesh current. Fig. for question 9 Each current source providing 4 A current 10. (a) How many loops are present in this circuit? (b) Find i1, i2 and i3 using mesh analysis. Fig. for question 10 11. a) Explain ‘node’ and ‘branch’ b) Determine io using source transformation. Fig. for question 11 12. Apply Source transformation and find Vo. [CO2] Fig. for question 12 13. Find io using the Superposition theorem. Fig. for question 13 14. Find vo using Superposition theorem. Fig. for question 14 15. (a) Determine Vo using superposition Theorem. (b) Calculate the power absorbed by the 5-ohm resistor. Fig. for question 15 16. (a) Find Vab using Thevenin Theorem. (b) Find the maximum power that will be transferred if a load is placed between a and b. Fig. for question 16 17. Find the thevenin equivalent of the given circuit. Fig. for question 17 18. (a)If we consider 50 ohm placed in between a and b as load, for maximum power transfer what should be the value of RN. (b) Find Norton equivalent in the given circuit and find the maximum power that will be transferred to the load. Fig. for question 18 19. Find the norton equivalent of this circuit along 48 ohm. Fig. for question 19 20. Find the power dissipated by 14 ohm in this circuit.[ Apply Source Transformation] Fig. for question 20