how a ujt act as a transistor not like a diode what is difference between them?
ACT Exam: Preparation Tips
Hello dear student,
Uni Junction Transistor (UJT) is also known as
double base diode
. It acts as a
switching transistor
instead of amplifying the signals. In UJT the PN junction is formed by lightly doped N-type silicon with heavily doped P-type material on one side. The UJT is a
three
terminal device and the diode is a
two
terminal device. In diode there are p-type and n-type regions whereas in UJT emitter type region is also there. UJT also acts a voltage breakdown device when the input is applied between emitter and one base terminal which shows that emitter is responsible for current flow in the device as the current varies.
I hope this is helpful to you.
Best Wishes!
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