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A 460-V, 60-Hz, four-pole induction motor develops its rated torque by drawing 10 A at a power factor of 0.866. The other parameters are as follows:
If such a motor is to produce a rated torque at hrequencies below 60 Hz while maintaining a constant air gap flux, calculate and plot the required line-to-line voltage as a function of frequency.
Determine the state diagram for the convolutional coder shown in Figure 11.48. Draw the trellis diagram through the first set of steady-state transitions. On a second trellis diagram, show the termination of the trellis to the allzero state.
determine the following by sloving laplace equations: a) the potential and electric field distribution in the dilectric slab. b) the potential and electric feild distrivution in the air space between the dilectric slab and the upper plate and c) t..
Design a common-emitter bandpass amplifier having 20dB voltage gain at frequency 1.6 MHz with a bandwidth of 80kHz, when driven by an ideal voltage source and loaded at the output by RL=100k ohm and Rs = 0 ohm.
find values of resistance, voltage, and current for total and all 3 voltage drops where only certain information is given out of three voltage drops info given total voltage is 12v, resistance 1 is 2.2KO, resistance 2 is 1.6KO, and resistance 3 is..
Using a computer simulation analysis, redesign the circuit in given Figure by changing the value of RF to achieve a transconductance gain.
A corporation has two construction contracts that are to be assigned to one or more of three firms (say I, II, and III) bidding for these contracts. (One firm could receive both contracts.)
Find the value of I required to develop a magnetic flux of = 4 x 10-4 Wb. - Determine µ and µr for the material under these conditions.
Determine the frequency f180 at which the phase of the loop gain is 180 degrees. - Determine the feedback transfer function β for which the phase margin of the system is 45?.
A power amplifier employs an output stage whose gam vanes from 2 to 12 for various reasons. What is the gain of an ideal (non varying) amplIfier connected to drive it so that an overall gain with feedback of 100 ± 5% V/V can be achieved
The capacitator in the circuit is charged to 20 V at the time the switch is closed. If the capacitator ruptures when it'sterminal voltage equals or exceeds 20kV, how long does it take torupture the capacitator
Calculate the frequencyto which the generated voltage drops before the steam flowcommences toincrease to meet the new load. The value of the stored energy forthe machine is5kW-sec per KVA of generator energy. Also calculate the value of Hconstant ..
The power amplifier in a home theater amplifier has an output power of 200 watts. Assuming a Class B amplifier with the maximum theoretical efficiency is used, find the DC power delivered to the amplifier.
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