Electrical Engineering MCQs

Page No. 80

Which of the following is most difficult to fabricate in an IC ?


aDiode

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bTransistor

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c FET

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dCapacitor

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View Answer Capacitor

A common base configuration of a pnp transistor is analogous to _____________?of a JFET


acommon source configuration

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bcommon drain configuration

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ccommon gate configuration

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d none of the above

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In a JFET, IDSS is known as ________________?


adrain to source current

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bdrain to source current with gate shorted

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cdrain to source current with gate open

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dnone of the above

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In a certain CS JFET amplifier, RD= 1kO , RS= 560 O , VDD=10V and gm= 4500 µS. If the source resistor is completely bypassed, the voltage gain is ________________?


a450

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b45

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c2.52

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d4.5

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View Answer 4.5

A certain p-channel E-MOSFET has VGS(th) = -2V. If VGS= 0V, the drain current is ____________?


a0 mA

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bID(on)

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cmaximum

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dIDSS

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View Answer 0 mA

A certain D-MOSFET is biased at VGS = 0 V. Its data sheet specifies IDSS = 20mA and VGS(off) = -5 V. The value of the drain current is _____________?


a20 mA

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b0 mA

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c40 mA

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d10 mA

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View Answer 20 mA

At cut-off, the JFET channel is _____________?


aat its widest point

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bcompletely closed by the depletion region

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cextremely narrow

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d reverse baised

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A certain JFET data sheet gives VGS(off) = -4 V. The pinch-off voltage Vp is _____________?


a+4 V

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b-4 V

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c dependent on VGS

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ddata insufficient

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View Answer +4 V

The source terminal of a JEFT corresponds to _____________ of a vacuum tube?


aplate

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bcathode

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cgrid

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dnone of the above

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View Answer cathode

The channel of a JFET is between the ________________?


agate and drain

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bdrain and source

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cgate and source

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dinput and output

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View Answer drain and source

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