Name the figure below and describe how it works.
What will be an ideal response?
A PNP transistor. A negative charge must be applied to the base to enable it to turn on.
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If a 500 ?, 1200 ? and 10 k? resistor are connected in parallel across a 25 V source, how much current flows through the 1200 ? resistor?
A) 50 mA B) 2.4 mA C) 20.8 mA D) 2.5 mA
The speed of an AC servo motor is controlled by the __________.
A. frequency of the AC supply B. amplitude of the signal supplied to the main winding C. amplitude of the signal supplied to the auxiliary winding
What year was the Montreal Protocol signed?
A. 1987 B. 1988 C. 1999 D. 2001
Mixed format: 
(with a space between the whole number and the numerator)Fraction format: 
Reduce all fractions. A copper contact is insulated from its support with one piece of mica 
inch thick, two pieces of fiber that are each 
inch thick, and
align="middle" src="https://sciemce.com/media/4/ppg__examview__ch2__00001_res__nr008-3.jpg" border="0"> inch of pressboard. The copper is 
inch thick, and the support is 
inch thick. What is the total thickness of copper, insulation, and support?
Fill in the blank(s) with the appropriate word(s).