thunderstrike

 Profile Answers by thunderstrike 

• Oct 1st, 2010

 

Emitter, base and collector are the three terminals of a transistor. Emitter emits majority carriers and is highly doped. Collector collects these majority carriers after the majority carriers reach base. Base is lightly doped region. As the collector is reponsible to collect majority carriers injected from the emitter it should have sufficient power handling capacity. This emphasises the need for largest area of capacitor.
Also area and doping of the base should be lowest because most of the carriers it obtains from the emmiter should contribute towards conduction.

Ranveer Upadhyay

 Profile Answers by Ranveer Upadhyay 

• Oct 3rd, 2010

 

 if u think over that then we use collecter in reverse bias n emitter in forward bias.
in reverse bias minority carriers r responsible for conduction. if the area of collector is not more than emitter then there will b u uneven flow of current.
hence to manage the constant current in the ckt we use collector of larger area......

collector>emitter>base.
 

himanshu.3375

 Profile Answers by himanshu.3375 

• Oct 22nd, 2010

 

Its area is kept more to collect the maximum number of electrons transmitted.