Transistor Quiz 3 Flashcards
Two of the major applications of transistors are for the purpose of X and X
Switching and amplifying
As the base of an NPN transistor become more positive, the collector current X
Increases
Collector current in a PNP transistor will decrease as the base becomes less X
Negative
The current gain of a transistor is the ratio of what two current?
Beta; Ic/Ib
What is the symbol for current gain?
Beta
The emitter-base junction of a transistor is X biased; the collector-base junction is X
Forward-biased
Reverse-biased
When a transistor is fully on, the voltage across the collector-emitter is approximately X V
0,1V
The beta of a transistor can be anywhere in the range of X to X approx
10 to 500
When a transistor is saturated, the impedance between the collector and emitter is X?
Low
The output impedance of a common emitter stage is just equal to the collector resistor in parallel with the load resistor (RC||RL) if connected otherwise its just RC. The voltage gain, Av of the amplifier is dependant upon RC/RE.
What the arrow on the emitter of a transistor indicating?
The arrow indicates the direction of flow of holes
When a transistor (silicon type) is turn on, the voltage across the base-emitter is approx. X V?
0,7 V
