The diac can operate ____ polarity.
A. only on positive
B. only on negative
C. on either
D. only without
Answer: C
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Based on TROT, what is the approximate btuh of a 5 HP medium temp compressor?
a. 60,000 btuh b. 40,000 btuh c. 30,000 btuh d. 20,000 btuh
When looking at a solenoid with an oscilloscope, what event often follows applying or removing power from the coil windings?
A) Decreased resistance B) Voltage drop C) Diode ripple D) Voltage spike
A system initially in its zero state is excited by the signal, x(t) = 3u(t), and the response is
Write a set of state equations using a minimum number of states.