Consider the two-transistor analogy of SCR, if α1 & if α2 are the common-base current gains of both the transistors then to turn-on the device:

α1 x α2 should approach unity

α1 – α2 should approach zero

α1 + α2 should approach unity

Consider the two-transistor analogy of SCR, if α1 & if α2 are the co

1.	Consider the two-transistor analogy of SCR, if α1 & if α2 are the common-base current gains of both the transistors then to turn-on the device:
A.	α1 – α2 should approach zero
B.	α1 + α2 should approach zero
C.	α1 + α2 should approach unity
D.	α1 x α2 should approach unity
Answer» D. α1 x α2 should approach unity

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Consider the two-transistor analogy of SCR, if α1 & if α2 are the common-base current gains of both the transistors then to turn-on the device:

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