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Some of the basic electrical units and definitions are mentioned below: Passive: Capable of operating without an external power source. Typical passive components are resistors, capacitors, inductors and diodes (although the latter are a special case). Active: Requiring a source of power to operate.    Includes transistors (all types), integrated circuits (all types), TRIACs, SCRs, LEDs, etc. DC: Direct Current. The electrons flow in one direction only.  Current flow is from negative to positive, although it is often more convenient to think of it as from positive to negative.  This is sometimes referred to as "conventional" current as opposed to electron flow.   AC: ...

General Knowledge Solved Question Paper 1. Christian Louboutin, who designed the shoe named ‘Bollywoody’ is based in– (A) France (B) Italy (C) Russia (D) Romania Ans : (A) 2. Who has developed the world’s first hydrogen-powered three-wheeler, HyAlfa which was showcased at Delhi Auto Expo 2012 ? (A) UN Industrial Development Organisation (B) International Centre for Hydrogen Energy Technologies (C) Mahindra and Mahindra and IIT-Delhi (D) All these Ans : (D) 3. “You look the world, we look after you” is the tag line of which brand? (A) Microsoft (B) LIC (C) SOTC (D) Bharti Airtel Ans : (C) 4. Recently, Iran’s first nuclear power plant has started contributing to its national grid. Where in Iran is it located? (A) Siraf (B) Bushehr (C) Knvormuj (D) Borazjan Ans : (B) 5. Infocrossing was acquired by– (A) Wipro (B) JSW Steel (C) Craves Software International (D) Godrej Sana Lee Ans : (A) 6. Boston Communications Group was acquired by– (A) Elder Pharmaceu...

AC   Alternating current. Consists of a periodic oscillation between two different voltages. Usually said to look like a sine wave, but is not always. AM  Amplitude modulation. In radio communications, a signal controls the amplitude of a carrier wave that is at a much higher, constant frequency. The carrier wave is filtered out and a loudspeaker plays based on the amplitude of the signal. Ampere (A)  The SI unit for current I . (Commonly spoken as "amps", "milliamps", etc.) The ampere is officially defined as that constant current which, if maintained in two straight parallel conductors of infinite length, of negligible circular cross-section, and placed one meter apart in vacuum, would produce between these conductors a force equal to 2×10 -7 newton per meter of length. There is another definition which is based on the deposition rate of silver ( in electrolysis? ), which is much easier to measure. The other...

Glossary - Basic Electronic Concepts A ALGORITHMS - A mathematical equation that produces in a fixed number of steps the answer the answer to a question or the solution to a problem. ALTERNATING CURRENT - AC VOLTAGE - Either voltage or current that varies smoothly from zero to a maximum value in one direction, or polarity, and returns to zero. It then reverses its direction (polarity) and rises to a maximum value in the opposite direction, and then returns to zero to complete the cycle. This cycle is repeated continuously. The number of cycles...

Electronics:  Basic Terms alternating current (AC): An electric current that has one direction during one part of a generating cycle and the opposite direction during the remainder of the cycle.  Think of one period of a sine wave as one cycle of an alternating current. amplifier:   A device used to increase the amplitude of a signal. capacitor:   A capacitor is a passive electronic component that stores energy in the form of an electrostatic field. In its most basic form, a capacitor consists of two conducting plates separated by an insulating material (the dielectric). In this experiment, however, there is only air between the capacitor plates.  The capacitance is directly proportional to the surface areas of the plates and inversely proportional to the separation between the plates. direct current (DC): An essentially constant-value current in which the movement of charge is in only one direction. impedance: The ratio of the effect...

ANNA University-Campus Recruitment QUANTITATIVE AND LOGICAL REASONING. 1. In a two-dimensional array, X (9, 7), with each element occupying 4 bytes of memory, with the address of the first element X (1, 1) is 3000, find the address of X (8, 5). ANS: 3212 2. In the word ORGANISATIONAL, if the first and second, third and forth, forth and fifth, fifth and sixth words are interchanged up to the last letter, what would be the tenth letter from right? ANS: I(ROANISATIONALG) 2E. In the word ORGANISATIONAL, if the first and second, third and forth, fifth and sixth words are interchanged up to the last letter, what would be the tenth letter from right? ANS: I(ROAGINASITNOLA) 3. What is the largest prime number that can be stored in an 8-bit memory? ANS:127 4. Select the odd one out. a. Java b. Lisp c. Smalltalk d.Eiffel. ANS: LISP 5. Select the odd one out a. SMTP b. WAP c. SAP d. ARP ANS: SAP 6. Select the odd one out a. Oracle b. Linux c. Ingress d. DB2 ANS:LINUX 7....