Operation Of The Bipolar Junction Transistor (2)

Strings (SiPjAjk) = S7P5A51     Base Sequence = 12735     String Sequence = 12735 - 5 - 51

Expressions Of Pj Problems
Operation Of The Bipolar Junction Transistor (2)
Math Using figure 122.3(a) as reference, determine the operating region of each of the Bipolar Junction Transistor illustrated in 122.3(b), 122.3(c) and 122.3(d) by determining whether the BE and BC junctions are forward-biased or reverse-biased.

The strings: S7P5A51 (Physical Change).

The math:
Pj Problem of Interest is of type change (physical change). Transistors are primarily used for signal amplification and switching. Both are change problems. BJT illustrated in 122.3(b): BE junction is forward-biased and BC junction is reversed-biased.
So, BJT is in the active region.

BJT illustrated in 122.3(c): BE junction is reverse-biased and BC junction is reversed-biased.
So, BJT is in the cutoff region.

BJT illustrated in 122.3(d): BE junction is forward-biased and BC junction is forward-biased.
So, BJT is in the saturation region. The point . is a mathematical abstraction. It has negligible size and a great sense of position. Consequently, it is front and center in abstract existential reasoning.
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