A voltage regulator experiences a 12 ?V change in output voltage when its input voltage changes by 6 V. The line regulation for the circuit is
A) 12 ?V/V B) 6 ?V/V C) 2 ?V/V D) 0 V
C
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On many machine torches the cutting tip is positioned very close to the _____.?
Fill in the blank(s) with the appropriate word(s).
What is the purpose of a cooling tower?
A) It cools the refrigerant by evaporating a small portion of the refrigerant to the air. B) It cools the water flowing through it by passing it over ice that is made during off peak hours. C) It cools the water flowing through it by evaporating a small portion of the water. D) It cools the water flowing through it using a separate compression refrigeration system.
Identify the type of modulation in each case, DSBSC, DSBTC, SSBSC or PAM.
(a) The information signal is simply multiplied by a sinusoidal carrier to form the transmitted signal.
(b) The Fourier transform of the transmitted signal consists of multiple scaled replicas of the Fourier transform of the information signal at integer multiples of the carrier’s fundamental frequency.
(c) A scaled replica of the spectrum of the transmitted signal appears centered at 
with impulses also at 
where 
is the frequency of the sinusoidal carrier.
(d) Of the four modulation types, the one with the minimum bandwidth for the same information signal.
(e) The information signal can be recovered by an envelope detector.
It is important to consider the type of work an animal does when formulating a ration.
Answer the following statement true (T) or false (F)