UJT ( uni-junction transistor) Uni junction transistor is an electronic component which has only one PN junction. Since UJT has only one junction and it operates as a transistor hence it is called a Uni junction transistor(UJT). Structure of UJT UJT has only p and n type semiconductor layer, where N-type semiconductor material contents to terminals called base B1 and base B2 while Pi type semiconductor material contains emitter terminal. Thus UJT contains three terminals, emitter, base B1 and base B2 and two semiconductor layers. In UJT P type semiconductor material has heavily doped while and N type semiconductor material has medium doped. In UJT, there is small area of p+ semiconductor material which is placed away approx 60-65% area from base B1 terminal in N type semiconductor bar. since the size of B1 section is larger than B2 section hence the resistance of B1 section is larger than B2, named Rb1>Rb2. structure of UJT Electrical Circuit diagram of UJT W...
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