A semi-conductor that is sensitive to temperature change and is used in solid state thermostats is a ____.

A. mercury contact
B. PTC device
C. transistor
D. thermistor


Answer: D

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Las lámparas de araña son un tipo de aparato de iluminación______.

a. montado en superficie b. empotrado c. suspendido d. montado en riel

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Which of the following is not an ecological role of wetlands?

A) controlling floods B) acting as a filter for pollutants C) source for residential water D) providing habitats for many species

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The producer of an organic operation must not use animal drugs, including ____________________ to promote growth

Fill in the blank(s) with correct word

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A function G (f) is defined by Graph the magnitude and phase of G (f-10) + G (f+10 over the range, -20 < f <20


What will be an ideal response?

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