What is the approximate leaving water temperature of a water-cooled ice machine?
a. 75° to 85° b. 95° to 105° c. 115° to 125°
b. 95° to 105°
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Once given a topic, FFA Extemporaneous Speaking contestants have ____________________ minutes to prepare
Fill in the blank(s) with the appropriate word(s).In solid-state technology, electrons move through a(n) ____ piece of semiconductor material, typically silicon or germanium.
a. solid b. ionized c. gaseous d. metallic
Describe the operation of ionizing plate electronic air cleaner
What will be an ideal response?
The circuit shown in Figure P10.27 is a variation of the motor driver circuit of Example 10.5. The external voltage vin represents the analog output of a microcontroller and alternates between 0 and 5 V. Complete the design of the circuit by selecting the value of the base resistor Rb such that the motor will see the maximum design current when vin = 5 V. Use the design specifications given in the example.
Assumptions:
Assume that the transistors are in the active region. Use the large-signal model with ? = 40 for each transistor.