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ATI 1-05
NAVY AT-I Electronics Unit 1-05
Question | Answer |
---|---|
If a signal is moving away from the reference, is it increasing or decreasing in amplitude? | Increasing in amplitude |
The range of frequencies which an amplifier is designed to amplify is referred to as_____ | Frequency Response |
Noise of a Transistor is inversely proportional to ____________ | Frequency |
A dot on a transistor indicates which element? | The Collector |
A tab on a transistor indicates which element? | The Emitter |
Conventional Power Transistors will usually have which lead connected to the mounting surface? | The Collector |
Which two leads on a transistor are usually furthest apart? | The Emitter and Collector |
Two things that effect frequency response of a transistor are __________ and ____________. | Base Width and Transit Time |
The application of DC voltages to a transisitors elements to establish stable reference values of voltage and current for the AC signal. | Biasing |
A condition that will destroy the transisitor due to a negative temperature coefficient of the emitter-base junction. | Thermal Runaway |
The perfect amplifier stability factor | 1.0 |
What are the 3 Processes of a transistor? | Injection, Diffusion, Collection |
The emitter contains ____ percent of total current through a transistor. | 100% |
The base contains ____ percent of total current through a transistor. | 2% to %5 |
The collector contains ____ percent of total current through a transistor. | 95% to 98% |
The process of increasing the strength of a signal | Amplification |
A semiconductor device that amplifies a signal | Transistor |
Which element on a transistor is the thickest for heat dissipation? | Collector |
Which element on a transistor is the least doped? | Base |
Which element on a transistor is the most doped? | Emitter |
On which type of transistor are the majority of current carriers electrons? | NPN |
On which type of transistor are the majority of current carriers holes? | PNP |
Holds or clamps the negative extremety of a wave form at a predetermined value so that the entire output is more positive than reference. | Positive Clamper |
Holds or clamps the positive extremety of a wave form at a predetermined value so that the entire output is more negative than reference. | Negative Clamper |
Limits both the positive and negative extremes of the input signeal. | Dual Diode Limiter |