Question

84. A semiconductor device with three
p-njunction is
(A) Semiconductor diodes and UJT
(B) BJT and FET families
(C) SCR family
(D) None of these​

Answer 1

Answer:

i think

Explanation:

UJT. OK

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Answer 2

Answer:

A bidirectional, three-terminal thyristor is called a triac. This device can switch the current in either direction by applying a small current of either polarity between the gate and one of the two main terminals. The triac is fabricated by integrating two thyristors in an inverse parallel connection.