grounded emitter
51Load line (electronics) — A load line is used in graphic analysis of circuits, representing the constraint other parts of the circuit place on a non linear device, like a diode or transistor. A load line represents the response of a linear circuit to which the nonlinear… …
52Photomultiplier — tubes (photomultipliers or PMTs for short), members of the class of vacuum tubes, and more specifically phototubes, are extremely sensitive detectors of light in the ultraviolet, visible, and near infrared ranges of the electromagnetic spectrum.… …
53Canonical form (Boolean algebra) — In Boolean algebra, any Boolean function can be expressed in a canonical form using the dual concepts of minterms and maxterms. Minterms are called products because they are the logical AND of a set of variables, and maxterms are called sums… …
54Cascade amplifier — A cascade amplifier is any amplifier constructed from a series of amplifiers, where each amplifier sends its output to the input of the next amplifier in a daisy chain. [ [http://www.innovatia.com/Design Center/Amplifier Circuits.htm Innovatia:… …
55Voltage-to-current converter — Introduction For a variety of reasons, in low voltage electronics, voltage is a more frequently used data carrier. Thus electronic devices tend to be labeled with voltage inputs and outputs. However some devices are labeled in terms of current… …
56global warming — an increase in the earth s average atmospheric temperature that causes corresponding changes in climate and that may result from the greenhouse effect. [1975 80] * * * Potential increase in global average surface temperatures resulting from… …
57Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity. Computer scientist Manindra Agrawal of the… …
58Metamaterial antenna — This Z antenna tested at the National Institute of Standards and Technology is smaller than a standard antenna with comparable properties. Its high efficiency is derived from the Z element inside the square that acts as a metamaterial, greatly… …
59Batman Begins — Infobox Film name = Batman Begins caption = director = Christopher Nolan producer = Emma Thomas Larry J. Franco Charles Roven writer = Screenplay: Christopher Nolan David S. Goyer Story: David S. Goyer Comic Book: Bob Kane Bill Finger starring =… …
60War Machine — This article is about the superhero. For other uses, see War Machine (disambiguation). War Machine Promotional art for Iron Man: Director of S.H.I.E.L.D. #33 Art by Adi Granov. Publica …
