Most devices that operate by ionization have a characteristic known as ____.
a. positive resistance
b. positive conversion
c. negative resistance
d. negative current
c. negative resistance
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Describe surface mounting.
What will be an ideal response?
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How can you produce white LEDs?
What will be an ideal response?
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A special squirrel cage winding, called ____________________, is used to start a synchronous motor.
Fill in the blank(s) with the appropriate word(s).
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The first normal or feline cat, Proailurus, appeared about _______ years ago
A) ?35 million B) 65 million? C) 120 million? D) 150 million
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