Test
Test 3 Study for Final
Preguntas del test (25)
1For the emitter bias, the voltage across the emitter resistor is the same as the voltage between the emitter and the
- ABase
- BCollector
- CEmitter
- DGround
2A coupling capacitor is
- AA dc short
- BAn ac open
- CA dc open and an ac short
- DA dc short and an ac open
3The emitter is at ac ground in a
- ACB stage
- BCC stage
- CCE stage
- DNone of these
4For emitter bias, the voltage at the emitter is 0.7 V less than the
- ABase voltage
- BEmitter voltage
- CCollector voltage
- DGround voltage
5The capacitor that produces an ac ground is called a
- ABypass capacitor
- BCoupling capacitor
- CDC open
- DAC open
6The voltage gain equals the output voltage divided by the
- AInput voltage
- BAC emitter resistance
- CAC collector resistance
- DGenerator voltage
7VDB is noted for its
- AUnstable collector voltage
- BVarying emitter current
- CLarge base current
- DStable Q point
8The capacitors of a CE amplifier appear to be
- AOpen to ac
- BShorted to dc
- COpen to supply voltage
- DShorted to ac
9A swamped amplifier uses
- ABase bias
- BPositive feedback
- CNegative feedback
- DA grounded emitter
10VDB needs
- AOnly three resistors
- BOnly one supply
- CPrecision resistors
- DMore resistors to work better
11The ac equivalent circuit is derived from the original circuit by shorting all
- AResistors
- BCapacitors
- CInductors
- DTransistors
12In a swamped amplifier, the effects of the emitter diode become
- AImportant to voltage gain
- BCritical to input impedance
- CSignificant to the analysis
- DUnimportant
13VDB normally operates in the
- AActive region
- BCutoff region
- CSaturation region
- DBreakdown region
14AC emitter resistance equals 25 mV divided by the
- AQuiescent base current
- BDC emitter current
- CAC emitter current
- DChange in collector current
15The feedback resistor
- AIncreases voltage gain
- BReduces distortion
- CDecreases collector resistance
- DDecreases input impedance
16If the emitter resistance is reduced by one-half in a VDB circuit, the collector current will
- ADouble
- BDrop in half
- CRemain the same
- DIncrease
17The output voltage of a CE amplifier is
- AAmplified
- BInverted
- C180 ° out of phase with the input
- DAll of the above
18The ac collector resistance of the first stage includes the
- ALoad resistance
- BInput impedance of first stage
- CEmitter resistance of first stage
- DInput impedance of second stage
19The base voltage of two-supply emitter bias (TSEB) is
- A0.7 V
- BVery large
- CNear 0 V
- D1.3 V
20The emitter of a CE amplifier has no ac voltage because of the
- ADC voltage on it
- BBypass capacitor
- CCoupling capacitor
- DLoad resistor
21If the input-coupling capacitor is open, the ac input voltage will
- ADecrease
- BIncrease
- CRemain the same
- DEqual zero
22The Q point of TSEB does not depend on the
- AEmitter resistance
- BCollector resistance
- CCurrent gain
- DEmitter voltage
23The voltage across the load resistor of a capacitor-coupled CE amplifier is
- ADC and AC
- BDC only
- CAC only
- DNeither DC or AC
24The ac collector current equals the ac base current times the
- AAC collector resistance
- BDC current gain
- CAC current gain
- DGenerator voltage
25For dc, the current in a coupling circuit is
- AZero
- BMaximum
- CMinimum
- DAverage
Información
- Descripción
- Nuclear Program Test sobre Test 3 Study for Final, creado por Katrina Himes el 12/06/2018.
- Autor
- Katrina Himes
- Idioma
- English
- Visitas
- 55
- Historial
- Creado el 12 jun 2018 · actualizado el 12 jun 2018
- Etiquetas
- Valoración
- 5,0 de 5 · 1 valoración Valora este test