Electrical Engineering MCQs

Page No. 18

An advantage of RC coupling scheme is the___________?


a Good impedance matching

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bEconomy

✓


cHigh efficiency

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dNone of the above

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View Answer Economy

In an RC coupled amplifier, the voltage gain over mid-frequency range_____________?


aChanges abruptly with frequency

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bIs constant

✓


cChanges uniformly with frequency

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dNone of the above

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View Answer Is constant

RC coupling is used for_____________amplification?


aVoltage

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bCurrent

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cPower

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dNone of the above

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View Answer Voltage

A radio receiver has____________of amplification?


aOne stage

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b Two stages

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cThree stages

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dMore than one stages

✓


View Answer More than one stages

A single stage transistor amplifier with collector load RC and emitter resistance RE has a d.c. load of ________________________?


aRC

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bRC || RE

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cRC – RE

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dRC + RE

✓


View Answer RC + RE

For highest power gain, one would use _________________configuration?


aCC

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bCB

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cCE

✓


dnone of the above

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View Answer CE

A transistor converts __________________?


ac. power into a.c. power

✓


bc. power into d.c. power

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chigh resistance into low resistance

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dnone of the above

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In transistor amplifiers, we generally use______________ capacitors?


aElectrolytic

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bMica

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c Paper

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dAir

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View Answer Electrolytic

The value of collector load RC in a transistor amplifier is _______________the output impedance of the transistor?


aThe same as

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bLess than

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cMore than

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dNone of the above

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View Answer Less than

The output power of a transistor amplifier is more than the input power because the additional power is supplied by__________________?


aTransistor

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b Biasing circuit

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cCollector supply VCC

✓


dNone of the above

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View Answer Collector supply VCC

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