If the load current decreases in a simple zener regulator, the ________
A) zener current increases B) voltage across the series resistor decreases
C) zener current decreases D) current through the series resistor decreases
A
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In a roof with a ridge beam,
A) ceiling joists are spaced at 24 in. on center maximum. B) ceiling joists are spaced at 16 in. on center maximum. C) ceiling joists are spaced at 12 in. on center maximum. D) none of the above.
The difference between the minimum and the maximum operating points within that a control will function accurately is known as:
A) Spread. B) Differential. C) Setpoint. D) Range.
An inductor with an XL of 270 ? is in series with a capacitor with an XC of 860 ?across a sine wave ac source producing 30 mA. The magnitude of VS is
A) 17.7 V ?90° B) 25.8 V ?-90° C) 17.7 V ?-90° D) 8.1 V ?90°
In electrical circuits, the grounding wire is typically ____.
A. black B. red C. green or bare D. white