B. In the circuit in Figure -3, find the value of I, and v [4 Marks]...
Question [5x2 marks 10 marks] In the circuit in Figure 4, the resistance value R1, R2, R3 and R4 have a value of 30, 40, 40 and 50 (a) Find the equivalent resistance (Req) in the circuit (b) Determine the current through each resistance 1 to 14. (c) Determine the power dissipated by each resistor and the power delivered by the independence voltage source. Confirm that the power delivered by the independent source is the same as the power absorbed...
Find the value of Vx in the circuit in the figure such that the power supplied by the 7-A source is 15 W. +- 10 310 2A 40 4V+ 320 203 7A V
QUESTION 3 [40 marks] (1) [20 marks] Find the Thevenin equivalent of the circuit given in Figure 5. 40 оа 6Ω 0.25 Vx W 8V ЗА 4Ω b Figure 5 (ii) [20 marks] In the circuit of Figure 6, the switch has been in the close position for a long time before opening at time t = 0; a. (2 marks) Find the capacitor voltage v.(0) for t < 0. b. (15 marks) Give an expression for the capacitor voltage...
Use linearity and the assumption that Vx 3 V to find the actual value of Vx in the given figure 10Ω 40 Ω 30 Ω 1 amp The actual value of V, due to the 1-A source is
3. For the circuit shown in Fig. 3, find Vx so that the current through the 400 D resistor is oA. (Hint: if the current goes through the 400 resistor is OA, then V V) (In the lab, we will use the DC sweep function of LTspice to find the voltage value Vx by sweeping Vx.) 200 Ω 0.0004 V 400 Ω 600 1 3 mA Figure 3.
QUESTION 2 [20 marks] (i) [10 marks] A 120-V dc generator energizes a motor whose coil has an inductance of 50 H in series with a resistance of 100 2. A field discharge resistor of 400 2 is connected in parallel with the motor to avoid damage to the motor, as shown in Figure 3. Find the current through the discharge resistor 100 ms after the breaker is tripped. (The circuit breaker has been in the closed position for a...
b) An amplifier has values of V = 24mV and Vout gain of the circuit 2V. Calculate the dB voltage (2 marks) c) For the circuit shown in Figure 11, calculate the lower critical frequency due to the output RC circuit. Vec +15 V R 3.9 LO C V. R. 0.33 uF 2N3904 600 n 0.1 F 5.6 k REI 33 0 R 22 k 50 mVpp 1.5 k 100 F (5 marks) Figure 11 12. a) Name the type...
2. Use the source transformation to find I, in the circuit from following Figure. 3 ΚΩ 3 ΚΩ 3 ΚΩ ξ2 kΩ 12V 24 V 2 mA
The variable resistor in the circuit in Figure 6 is adjusted for maximum power transfer to \(R_{0}\)a) Find the numerical value of \(R_{0}\) (2 marks)b) Find the maximum power delivered to \(R_{0}\) (2 marks)c) How much power does the \(180 \mathrm{~V}\) source deliver to the circuit when \(R_{0}\) is adjusted to the value found in (a)? (2 marks)
ONLY NEED HELP WITH III and IV PLEASE (e) A second stage, shown in Figure 3, is cascaded directly after the output of the circuit in Figure 1 R4 Figure 3 (i) Show that the combined response of the complete circuit is given by: (4 marks) (ii) The two cascaded stages form a bandpass filter, which only amplifies a specific range of frequencies. This range of frequencies is known as the passband. Using the values chosen in (a) for Figure...