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The load of the full-wave SCR circuit in Figure 10.23 consumes 130W. The rms voltage across the load is 80V, and its average voltage is 50V.
a. Compute the average voltage across any SCR.
b. The triggering circuit of one SCR failed and that SCR is not conducting anymore. If the triggering angle of the rest of the SCRs is unchanged, compute the average voltage of the load and the load power.
The sending-end Voltage, current, real and reactive powers, and the power factor.
A 5V battery, when connected to a 100 ohm load, supplies the load with 40mA. a) determine the internal resistance of the battery. b)what is the battery output under no load conditions under full load conditions c) find the percent voltage regulati..
The sun is at an altitude of 30 degrees to the horizontal. What is the corresponding air mass What is the physical significance of air mass Mars has a very thin atmosphere containing primarily CO_2 and dust particles.
Describe how three-position control might be used to cause a windmill to always face into the wind. The windmill is rotated with a bidirectional DC motor.
Use Microsoft Excel to compare costs from at least three different vendors and reasons to accept specific bids. (May use graphs in Excel to provide a better visual comparison)
Discuss the rationale for this robust behavior.
Japan has both a 50 Hz power system and a 60 Hz power system. A motor - generator set is designed to connect the two. The basis is that the motor would be operated from the 50 Hz system and on a common shaft
For f0 = 1/50 and N = 200, write a program to quantize the signal x(n), using truncation, to 64, 128, and 256 quantization levels. In each case plot the signals x(n), xq(n), and e(n) and compute the corresponding SQNR.
6-PAM is shown as below; find symbol power (variance) assuming each symbol is equally likely (i.e., probability =1/6) using the definition of variance of a random variable.
The probability that a person will install a black telephone in a residence is estimated to be 0.3. Find the probability that the tenth phone installed in a new subdivision is the fifth black phone.
What is the bandwidth occupied by this signal, and the noise bandwidth of the receiver for this signal? Find the BER at the receiver output and the average time between errors.
Show that this is not the case in relativistic mechanics. [Hint: Remember that the four-momentum p is supposed to transform like a four-vector.]
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