QUESTION 2 [20 marks] (i) [10 marks] A 120-V dc generator energizes a motor whose coil...
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...
Question B2 Figure 8 shows a DC electric circuit with a 2-way switch. The capacitor is initially not charged. At t= Os, switch is at position and the capacitor is then charged up 1000 Position1 RT Position2 (20V R 500 0.02F (NV Figure 8 (a) Whent > sec, the capacitor is charged through R, to steady state, 0 Find the complete response of y(t) fort > 0s. (5 marks) (m) Sketch the response of (t) for t> Os. (3 marks)...
Ri Sw Sw2R (a) Circuit Swi Closed + Open T t (ms) 10 20 30 40 50 Sw2 Closed (ms) 10 20 30 40 50 Figure m5.3 Voltage waveform for Problem m5.3. m5.3 Response of the RC Circuit: Figure m5.3(a) shows a resistor-capacitor circuit with a pair of switches and Fig. m5.3(b) shows the switch opening-closing behavior a function of time. The initial capacitor voltage is as -9 V. Component values are R1-10k. R2-3.3 kg2. (a) Determine the equation that...
All of them 11) 11) The coil of a generator is rotated twice as fast keeping all other factors constant. What happens to the value of the maximum induced emf? A) It is increased by a factor of 4. B) It stays the same. C) It is reduced by a factor of 2 D) It is increased by a factor of 2 E) It is reduced by a factor of 4. 12) The primary codl of a transformer has 100...
ln the figure below you see a circuit with a battery (V), a capacitor (C), and two resistors (R1 and R2). The circuit has a switch that can be in two positions: switched to touch point A or switched to touch point B. By setting first the switch to A you can charge the capacitor, and then switching it to B you discharge the capacitor through the resistor. (This is the simple mechanism behind a camera flash, you can imagine...
Problem 3. The switch in the following circuit has been in position for a long time before changing at t=0. a. Find the capacitor voltage for t<0 and t>0. Sketch it. (Hint: at t=1 s the voltage is 10.8 V) b. Find the current through the capacitor for t<0 and t > 0. Sketch it. 392 22 M St=0 + - 12 v 0 400 3F - 1
Part 1 of an AC/DC circuit question thankyou Cyril the Circuit Analyst is examining the interaction of both AC and DC sources with a circuit The circuit is drawn below. Pay careful attention to the arrows on the switches which show which are initially open, and which are initially closed. Assume that the capacitor is initially discharged at t 0. All times are in seconds 10 mH t=5s 2s 0s-s 10cos(ax) 400 : 50 μF 10 mA (a) At0, the...
QUESTION Cyril the Circuit Analyst is examining the interaction of both AC and DC sources with a circuit. The circuit is drawn below. Pay careful attention to the arrows on the switches which show which are initially open, and which are initially closed. Assume that the capacitor is initially discharged at 0. All times are in seconds 10 mH 1-Os1-1s!=2s \ t = 5s 400 | 10cos(ox) 50 pF 10 mA At 0, the first switch closes connecting the current...
Q-1, 15 Marks] In the circuit of Fig.1 the switch (Sw) is closed to ground for a long time and opened at t = 0 s. 1. Find the voltage on the capacitor at a time of 1 s 2. Is the voltage on the capacitor at 1 s greater than or less than the voltage on the capacitor at time too s Data: V-10 V (DC and polarity as in Fig. 1), R= 1 Ω , L-1 H, C=...
2) Shown below is a c R2 = 7 Ω, R3 = 24 Ω, R4 = 10 ircuit with two switches. Si and S2M = 15 V, V.-5 V, V,-20 V, Rı = 15 Ω . 25s2 C,200F v -,,I -R, Г 2:0 start atp sition A. This creates two dependent circuits. The left circuit with only resistors '5 V-15A)(T)-YAG).2ov-ocharges the capacitor C, through resistor Rs with battery Vs(the capacitor is initially The switch 1 will start in the on/closed...