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Using 1.5v batteries, a switch, and 3 lamps, device a circuit to apply 4.5v across one lamp, two lamps in series, or three lamps in seris with a single control switch. Draw the schematic.
Electrical & Electronics, Engineering
Problems - Problem 1 - Find v 0 in the op amp circuit of Fig. 1. Problem 2 - Compute i 0 (t) in the op amp circuit in Fig. 2 if v s = 4 cos(10 4 t). Problem 3 - If the input impedance is defined as Z in = v s /I s , find ...
Research report 1. Read 3 to 4 journal articles about digital control or industrial control, eg. one particular application, implementation aspect such as selection of sampling time, hardware etc. No text book example is ...
Electrical Engineering Questions - Q1. Two ideal voltage sources designated as machines 1 and 2 are connected, as shown in the figure below. Given E 1 = 65∠0 o V, E 2 = 65∠30 o V, Z = 3Ω. Determine if Machine 1 is genera ...
Discuss the role of load factor on the cost of electrical energy.
Questions - Problem 1 - Given the sinuosidal voltage v(t) = 50 cos(30t+10 o ) V, find: (a) the amplitude V m (b) the period T, (c) the frequency f and (d) v(t) at t = 10 ms. Problem 2 - A current source in a linear circu ...
Question - (i) A star-connected, three-phase synchronous induction motor takes a current of 10 amps from a 415 volt supply at unity power factor when supplying a steady load. If the synchronous reactance is 5 ohms/phase ...
Assignment - Consider a common emitter amplifier: Now let's say that R B and R C do a fine job at DC biasing the BJT but they are large so they can be neglected for small signal (AC) analysis. In that case, the equivalen ...
1. (a) Name the three major groups of contamination and briefly describe their physical characteristics. (b) Where do the above contamination types come from? Give one example of each. 2. Name two processes metrics which ...
Questions - Problem 1 - A series RLC network has R = 2 kΩ, L = 40 mH and C = 1μF. Calculate the impedance at resonance and at one-fourth, one-half, twice, and four times the resonant frequency. Problem 2 - Design a serie ...
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