To switch the SCR off, it is necessary to reduce the ____ voltage below the hold-on value, typically close to zero.
A. anode-to-cathode
B. positive input gate
C. momentary gate
D. negative input gate
Answer: A
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Pressing the ____ pushbutton will again disable the VFD, but bring the motor to a stop by the programmed stop parameters.
a. start b. jog c. reverse d. stop
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____________________ establish an attraction of the north pole of a magnet to its south pole.
Fill in the blank(s) with the appropriate word(s).
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A binary counter is a digital circuit that uses flip-flops connected together to produce a sequence of states representing binary numbers
Indicate whether the statement is true or false
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A one-shot is a multivibrator that must be triggered to produce each output pulse
Indicate whether the statement is true or false
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