Assignment Brief: (a) The voltage difference 𝑣(𝑡) across the device shown in Figure 1 is given by 𝑣(𝑡) = 4𝑒−3𝑡�

Assignment Brief:

(a) The voltage difference 𝑣(𝑡) across the device shown in Figure 1 is given by 𝑣(𝑡) = 4𝑒−3𝑡�

 

 

 

 

 

(i) Find the current 𝑖(𝑡) through the device.
(ii) Find the charge delivered to the device between 𝑡 = 0𝑠 and 𝑡 = 1𝑠.
(iii) Calculate the power absorbed by the device.

(b) By referring to Figure 2, answer the following questions:

(i) Briefly explain Ohm’s Law.
(ii) By using Ohm’s Law, find the current, I1.
(iii) By using the voltage division rule, find the voltage, V0

 

 

(c) Answer the following questions based on Figure 3.

(i) Identify which elements in Figure 3 are supplying power and which are
dissipating power.
(ii) Determine the power dissipated or supplied for each element.

 

 

 

Question 2(a) By referring to Figure 4, answer the following questions:
(i) Find the voltage, 𝑉𝑥 across the dependent source by using Kirchhoff’s
law and Ohm’s law.

(ii) Find the power supplied or absorbed by the 4𝑉 voltage source.

 

 

 

 

(b) Find RAB in the network shown in Figure 5

 

 

 

(c) By using mesh analysis, solve I1 and I2 for the circuit shown in

Figure 6

 

 

 

Question 3
(a) (i) By using nodal analysis, solve the node voltages for the circuit shown in Figure 7.

(ii) Find the power of the 4𝐼𝑦 dependent voltage source.

 

 

 

 

(b) Find the Thevenin equivalent circuit of the circuit in Figure 8 with respect to terminals a and b.

 

 

 

 

Question 4 (a) Use Norton’s Theorem to find V0 in the network shown in Figure 9

 

 

 

(b) Use the superposition theorem to find the value of the voltage Vx in Figure 10. Show all the necessary steps in your calculation.