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Electrical Engineering Questions and Answers February 02, 2018

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Problem 5 C . Even though a mixer is a non - linear device the relationship between RF input power and IF output power in a down conversion application is always 1 : 1 ( 1 dB increase in RF input power results in 1 dB increase in IF output power. ( T / F ) True False
Problem 5 C . Even though a mixer is a non -

1 8 Multiple Answer 5 points The advantage ( s ) of the multi - level ( 5 , 7 , 9 , etc.. ) pwm voltage source inverter ( non - ideal ) , over using a 3 - level pwm voltage source inverter ( non - ideal ) , is that it Note: Multiple correct answers may exist, select ANY answer that applies. results in smaller inductor / capacitor values for
1 8 Multiple Answer 5 points The advantage ( s )

Rated line voltage is applied to the sending end of the line in Problem 5 . 2 6 . Calculate the receiving - end voltage when the receiving end is ter minated by ( a ) an open circuit, ( b ) the surge impedance of the line, and ( c ) one - half of the surge impedance. ( d ) Also calculate the theoretical maximum real power that the line can deliver

what is the effect o load change on a synchronous generator operatigg aone

For the given LTI system, y ( n ) = y ( n - 1 ) - 0 . 5 y ( n - 2 ) + x ( n ) + x ( n - 1 ) 1 . Determine the impulse response, h ( n ) of the system. 2 . Determine the step response of the system if x ( n ) = u ( n ) . ( write full answer ) . 3 . what is the region of convergence ( ROC ) ? ( show the steps ) .

Write a Verilog code and use Tang Nano 9 k FPGA that will generate PWM signal at frequency 1 ABC Hz where ABC is the last three digits of your student 9 4 2 . Duty cycle is 5 0 % Measure the generated signal using Saleae logic analyzer and copy past the picture showing the frequency and duty cycles

the Laplace transform of f ( t ) = s i n t u ( t ) .
the Laplace transform of f ( t ) = s i n t u ( t

An industrial facility needs to purchase a transformer to step down the utility 3 - phase supply voltage from 4 . 1 6 kV to 4 8 0 V to feed a fire pump motor ( 5 0 h p , 3 - phase, 4 6 0 V ) and a jockey pump ( 1 . 5 h p , 3 - phase, 4 6 0 V ) . Determine the transformer ratings to be included in the purchase order.
An industrial facility needs to purchase a

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