What is the most common and preferred method used to bias JFET amplifiers?
What will be an ideal response?
The most common and preferred method used to bias JFET amplifiers is called voltage-divider bias. In voltage-divider bias, the main DC power supply voltage is divided among various resistors to turn on a transistor so that it’s ready for amplification.
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What is voltage drop?
A. Voltage used up when pushing current through a resistance B. Current used to go through a resistance C. Electrons used to go through a resistance D. All of the above
The unit of measurement for the porosity of fabric duct is _____
a. cfm/ft2 of surface area b. cfh/ft2 of surface area c. cfm/lineal foot of duct material d. cfh/lineal foot of duct material
How is placement of the condenser line determined when drawing a PH diagram of an operating system?
A) Draw a vertical line across the saturation curve on a constant enthalpy line equal to the system high-side absolute temperature. B) The condenser line can be drawn anywhere that crosses the saturation curve as long as it is a horizontal line. C) Draw a horizontal line across the saturation curve on the constant pressure line equal to the system high-side absolute pressure. D) The condenser line is always drawn on the horizontal line representing 275 psia absolute pressure.
One sheet of drywall weighs 48.7 pounds. If 50 sheets are ordered, the total weight of the order would be
_____. a. 2,532.0 pounds b. 2,435.0 pounds c. 2,430.0 pounds d. 243.5 pounds