Curioustab
Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
Bipolar Junction Transistors (BJT) Questions
A transistor may be used as a switching device or as a:
If a transistor operates at the middle of the dc load line, a decrease in the current gain will move the Q point:
If VCC = +18 V, voltage-divider resistor R1 is 4.7 kΩ, and R2 is 1500Ω, what is the base bias voltage?
What is the collector current for a C-E configuration with a beta of 100 and a base current of 30 µA?
With low-power transistor packages, the base terminal is usually the:
The Q point on a load line may be used to determine:
For a C-C configuration to operate properly, the collector-base junction should be reverse biased, while forward bias should be applied to which junction?
A collector characteristic curve is a graph showing:
Which is the higher gain provided by a C-E configuration?
If an input signal ranges from 20–40 µA (microamps), with an output signal ranging from .5–1.5 mA (milliamps), what is the ac beta?
With a PNP circuit, the most positive voltage is probably:
A common-emitter (C-E) is so called because the emitter is connected to both the input and output signals.
In this analog amplifier the input is in phase with the output.
A decrease in base current of a C-E amplifier causes the voltage measured between the emitter and the collector to increase.
A bipolar transistor has three leads: the base, collector, and emitter.
Transistors are controlled to operate as a switch or to operate as a variable resistor.
In a common-base (C-B) amplifier, the output is 180 degrees out of phase with the input.
In a BJT, the collector current is approximately equal to the base current.
If this circuit were used in a digital circuit, it would be a NOT gate.
With a common-collector (C-C) amplifier the input is applied to the base and the output is taken from the emitter.
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