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Most dc voltmeters produce a reading equal to the average value of the voltage measured. The mathematical definition of the average value of a periodic waveform is
Vavg = 1/T ∫0T v(t)dt
in which T is the period of the voltage v(t) applied to the meter.
a. What does a dc voltmeter read if the applied voltage is v(t) = Vm sin(ωt)?
b. What does the meter read if the applied voltage is a half-wave rectified version of the sine wave?
c. What does the meter read if the applied voltage is a full-wave rectified version of the sine wave?
Suppose a standard single-phase transformer that has a rating of a 15 kVA, 600V/120V, 60 Hz is reconnected as an autotransformer to obtain 600 V primary to 720 V secondary voltage ratio.
The available circuit components are NMOS transistor, PMOS transistor, resistors, capacitors and inductors. Ideal sources can only be used to generate the supply voltage VDD & GND.
It is required to design a full-wave rectifier using a center tapped rectifier to provide an output voltage of 10 v. Find the required number of turns ration of the transformer. Assume that a conducting diode has a voltage drop of 0.7v. The ac lin..
What approximate minimum BER is required for voice signals, data signals and what is the approximate BER level for the optical fiber systems ?
When working out the power dissipated you have the equationusing the same current (io) but this time you use anegative sign in the equation. How do you know when to use a positive or negative sign for this current in both situations
The RS-232 serial port on a personal computer is transmitting 2400-bit/sec data using a polar NRZ line code that has a peak value of 12 V. Assume that binary 1's and 0's are equally likely to occur.
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.
Otherwise determine where any other states will go. Draw a transition tablebased on the state diagram. Design a combinational logic diagram using only NAND gates in addition to the flip flopsand BCD to seven segment display.
A certain unity feedback control system has the closed-loop transfer function: T(s)= Y(s)/R(s)= (s/10+1)/((s/100+1)*(((s/20)^2)+s/20+1))) a) What is the estimated rise time b) What is the estimated overshoot
A standard D cell flashlight battery is connected to a load of 3 ohms. After 6 hr of intermittent use the load voltage drops from an initial 1.5 V to a final useful voltage of 0.9 V. (a) Calculate the internal resistance of the battery at the load ..
Two IIR filter coefficients are given below, respectively, IIR system 1: Numerator coefficients: bBP = [0.0201 0.0000 -0.0402 0.0000 0.0201 ]; Denominator coefficients: aBP = [1.0000 -2.1192 2.6952 -1.6924 0.6414 ]; IIR system 2: Numerator coefficien..
The mobile phone used has effective area of 3m^2 and good signal reception required receiving power of 1mW. -Calculate the receiving power of mobile phone A and mobile phone B. -Which mobile phone has good coverage
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