

CGBSE BOARD CLASS MODEL QUESTION PAPERS 9TH MODEL QUESTION PAPERS HINDI ENGLISH SANSKRIT MATHEMATICS SOCIAL SCIENCE SCIENCE 11TH MODEL QUESTION PAPERS PHYSICS-N-201 CHEMISTRY-N-202 BIOLOGY-N-203 MATHEMATICS-N-204 BUSINESS STUDIES-N-302 ACCOUNTANCY-N-301 ECONOMICS-N-303 12TH MODEL QUESTION PAPERS AGRICULTURE GROUP CROP PRODUCTION& HRI.-420 ELE. OF AGRI. SCIENCE&MATHS FOR AGRI.-410 ELE. OF ANIMAL HUS.&POULTRY FARMING-430 ARTS GROUP GEOGRAPHY-120 HISTORY-110 POLITICAL SCIENCE-130…

Switching and linear regulator use fundamentally different techniques to produce a regulated output voltage from an unregulated input.Each technique have advantages and disadvantages.So the application will determine will determine the moist suitable choice. Linear power supplies can step-down an input voltage to produce a lower output voltage.This is done by operating a bipolar transistor or…

Gas disharge plasma displays are the most well known type of alphanumeric displays.Their operation is based on the emission of light in a cold cathode gas filled tube under breaking down condition.These cold cathode numerical indicators are called Nixies.(Numicators and Numbertrons). The Nixie tube is a numeric indicators based on glow disharge in cold cathode…

A firewall is a system that enforces an access control policey between two networks-such as your private LAN & the unsafe,public internet.The firewall determines which inside service can be accessed from the outside & vice-versa.The actual means by which this is accomplished varies widely,but in principal,the firewall can be thought of as a pair of mechanism:one to block traffic &…

Bharat Coking Coal Limited is a subsidiary of Coal India Limited,Government of India Enterprise,mainly situated in the state of Jharkhand & partly in West Bengal.It is the largest coal company operating in the Jharia coalfields & is the prime source of coking coal in the country. The management of the coking coal mines in Jharia…

In practice two types of impulse voltages can occur (i) full wave and (ii) chopped impulse wave.If the lightning surge travels along the transmission line,it results in full wave impulse voltage reaching to transformer.Whereas if the surge voltage causes a flash over just before reaching to transformer it results in chopped impulse wave. The full…

The zero-power factor characteristic (ZPFC) of an alternator is a curve of the armature terminal voltage per phase plotted against the field current obtained by the operating the machine with constant rated armature current at synchronous speed and zero lagging power factor.The ZPFC is some times called potier characteristic after its originator. For maintaining very…

CAD has the following advantage over traditional method of design- (i)Â Computer aided design (CAD) is faster and more accurate results than conventional methods. (ii)Â Developing the design of component and associated drafting is a very easy task with CAD. (iii)Â Manipulation of various dimensions,attributes and distance of drawing elements,is very easy.This make CAD the most useful designing…