K.C.S.E Physics Q & A - MODEL 1995PP2QN07

K.C.S.E Physics Q & A - MODEL 1995PP2QN07

The sketch in the fig 5 shows the results of an experiment where a transistor was used as a voltage amplifier 

(c)​Explain how the voltage amplification factor, beta, may be obtained from the sketch graph 
(d) (i) Draw a circuit diagram of p – n – p transistor operating in the common emitter ( C-E) mode indicate on the diagram the directions of the collector current Ic the base current IB the emitter current IE
(ii) Write the equation relating IC IB IE 
(e) Identify the type of biasing in each of the junctions of a transistor in operation

answers

​(c) At the middle of the reaction of a curve a tangent is drawn change on output (∆V0) is determined and a corresponding change input (∆V1) also attained change amplification.