A transistor used in a digital circuit will have two operating states, which are cutoff and saturation.

More Questions from Bipolar Junction Transistors (BJT)

• BJTs are "junction" transistors because they use current-carrying P-N junctions.
• The voltage measured from the collector to the emitter is the sum of the voltage base-emitter plus the voltage collector-base.
• Current gain in a transistor is inversely proportional to collector current.
• The three bipolar transistor circuit configurations are common-base, common-emitter, and emitter-follower.
• When a transistor is operating as a variable resistor it has transistance.
• The polarity of VBE is such that it reverse biases the base-emitter junction.
• The voltage gain of a transistor is inversely proportional to the change in output current.
• This is a PNP transistor.
• The voltage measured from the collector to the emitter is the sum of the base-emitter voltage plus the collector-base voltage.
• In a BJT, the collector current is approximately equal to the base current.

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