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Introduction to Mechanics and Symmetry- J. Marsden, T. Ratiu

Book Description

April 14, 1999 
A development of the basic theory and applications of mechanics with an emphasis on the role of symmetry. The book includes numerous specific applications, making it beneficial to physicists and engineers. Specific examples and applications show how the theory works, backed by up-to-date techniques, all of which make the text accessible to a wide variety of readers, especially senior undergraduates and graduates in mathematics, physics and engineering. This second edition has been rewritten and updated for clarity throughout, with a major revamping and expansion of the exercises. Internet supplements containing additional material are also available.


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In  this  configuration  the  input  is  applied  between the  base  and  the  collector and  the  output  is  taken  from  the  collector  and  the  emitter.  Here  the  collector  is common to both the input and the output circuits as shown in Fig.

  Common Collector Transistor Circuit

In  common  collector  configuration  the  input  current  is  the  base current  IB  and  the output current is the emitter current IE. The ratio of change in emitter current to the  change in the base current is called current amplification factor.

It is represented by


A test  circuit  for determining the  static characteristic  of an NPN transistor is shown in Fig. In this circuit the collector is common to both the input and the output circuits.   To   measure   the   base   and   the   emitter   currents,   milli   ammeters   are connected in series with the base and the emitter circuits. Voltmeters are connected   across the input an…

XII - Ch# 12 : Electrostatics :Solved Numericals


COMMON BASE CONNECTION In this configuration the input is applied between the emitter and base and the output is taken from the collector and the base. Here the base is common to both the input and the output circuits as shown in Fig.

In a common base configuration, the input current is the emitter current. and the output current is the collector current I The ratio of change in collector

current to the change in emitter current at constant collector-base voltage is called current amplification factor,

In a transistor VEB, IE, VCB, and IC are parameters.

These parameters can be interrelated in a number of ways. In these parameters the input current and the output voltage are taken as independent variables.The input voltage and output current are then expressed in terms of these independent variables. And these dependent variables also be expressed in functional relationship.
                                                              i.e., VBE= f1 (IE,VCB)