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An eight-pole 60-Hz ac induction motor produces an output power of 2 h p and has rotational losses of 100 W at a speed of 850 rpm. Determine the slip, the frequency of the stator currents, the frequency of the rotor currents, and the rotor copper loss.
Explain briefly why a capacitor can block DC voltage. How might you use this feature in a design. Explain why the impedance Zeq of a parallel RC circuit decreases as the frequency increases.
1. An AM signal has an unmodulated carrier voltage VC = 10VP, a load resistance of RL = 10, and a modulation index of m = 1. 2. You are tuned to an AM station at 1200 KHz. Write down the frequency components of the received AM signal.
A state diagram for a particular finite state machine requires a total of 130 states. What is the minimum number of binary digits required to encode these states uniquely. This is actually the minimum number of flip-flops that can be used to imple..
a) Generate the State Transition Table, which should include the binary( ones and zeroes) values of the Flip Flop inputs which then enable you to determine next states based on current states. b) Draw the State Diagram for the system.
Distortion per data symbol is negligible and the time variation during a symbol period is negligible - what is the appropriate range of the symbol duration in this communication system?
Prepare the report keeping in view all the attributes of the SOs given on next page. There will be a subsequent presentation to check some Consider damped of the attributes that cannot be addressed in the report.
Sketch the amplitude spectrum of a DTMF signal with finite duration. You should make this sketch by hand, using the Fourier transform expression obtained in part 1). What happens to the DTMF spectrum when T is "too small"
A 120V(rms), variable-frequency source is connected in series with a 100Ω resistor and 100μF Capacitor. Find the input power to the circuit from the source at the frequency where the power factor of thr load is 0.75.
1.explain what is the instantaneous values of AC AND phase shift angle are. Explain what the effective and average values of AC are. How are they related with amplitude. 2.Draw a calculated conductivities triangle for the circuit with a parallel co..
Draw the circuit diagram of a 4-bit binary adder-subtractor using a 4-bit binary adder and XOR gates. Treat the adder asa block component with appropriate inputs and outputs. you doNOT need to show the internal gates of the adder.
Find the equivalent resistance of the series combination of resistors. Also find VT, V1 and V2. Find the equivalent resistance of the parallel combination of resistors. Also find IT, I1 and I2.
A half-wave rectifier circuit with a 1-Kwload operates from a 12-v(rms) 60-Hz household a 5-to 1 transformer having a center-tappedsecondary winding. It use two silicon diodes that can be modeled tohave a 0.7-v drop for all currents.
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