Electronic Circuits

141. The quiescent current of a FET amplifier is

1. IDS
2. id
3. ID
4. Id

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142. The ratio output rms power in watts to the input dc power in watts in the different amplifier class is called _________ .

1. Gain
2. Amplification factor
3. Efficiency
4. Phase power

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143. The signal generator generally used in laboratories is _________ oscillator

1. Crystal
2. Wien-bridge
3. Hartley
4. Phase-shift

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144. The simplest variable frequency sinusoidal oscillator is the

1. Complicated Colpitts circuit
2. Crystal circuit
3. Armstrong circuit
4. Phase shift circuit

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145. The stability of a regulated power supply is equivalent to

1. change of output voltage over the change in supply voltage
2. change in supply voltage over the change of output voltage
3. product of the output voltage and supply voltage
4. the difference of an output voltage to its supply voltage

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146. The term 1+ A β in the expression for gain with negative feedback is known as

1. Gain factor
2. Sacrifice factor
3. Feedback factor
4. Quality factor

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147. The three amplifiers are connected in a multistage arrangement each with a voltage gain of 30. Compute for the overall voltage gain.

1. 90
2. 27000
3. 10
4. 30

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148. The total decibel voltage gain of two cascaded voltage amplifier where individual voltage gains are 10 and 100 is

1. 20
2. 60
3. 800
4. 1000

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149. The value of collector load resistance in a transistor amplifier is _________ the output impedance of the transistor.

1. Equal to
2. More than
3. Less than
4. Not related

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150. The voltage gain of a common collector configuration is

1. Unity
2. Zero
3. Very high
4. Moderate

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