Active and Passive Devices Online Exam Quiz

Active and Passive Devices GK Quiz. Question and Answers related to Active and Passive Devices. MCQ (Multiple Choice Questions with answers about Active and Passive Devices

Attenuators are active devices.




C : -

D : -

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If an NMOS is degenerated by a resistor in series with the source, what will happen to the output resistance?


A : It increases

B : It decreases

C : It remains same

D : Cannot be determined

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If we have 3 resistors of 1k, 2k and 3k, how should they be used amongst R1, R2 and R3 to get the maximum gate voltage in the following C.S. stage?^


A : R1 = 1k, R2 = 2k, R3 = 3k

B : R1 = 3k, R2 = 2k, R3 = 1k

C : R1 = 2k, R2 = 1k, R3 = 3k

D : R1 = 3k, R2 = 1k, R3 = 2k

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In the following C.S. stage, what is the gate voltage appearing across M1?^


A : V1 * [(R2 || R3) / (R1 || R2 || R3)]

B : V1 * [(R2 + R3) / {R1 + R2) || R3}]

C : V1 * [(R2 + R3) / (R1 + R2 + R3)]

D : V1 * [(R2 || R3) / {R1 + (R2 ||R3}]

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Neglecting Channel Length Modulation, what is the output impedance of the following C.S. stage?^


A : R4

B : R4 || R2

C : R4 || (R2 + R3)

D : R4 || [(R2 + R3) || R1]

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The overall gain of multiple amplifiers in cascade can be expressed as__ (A1, A2, A3 are individual gains)


A : A1-A2-A3

B : A1+A2+A3

C : A1/A2*A3

D : A1*A2*A3

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The unit of gain is __


A : Joules

B : Decibels

C : Its unit less

D : Watts

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To overcome the problem of representation of large values of gain, which of the following units was introduced?


A : Decibels

B : Joules

C : Pascals

D : Farads

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Tunnel diode can be used as an active device because__


A : its negative resistance region is used

B : it conducts at a faster rate

C : it triggers the flow of electrons in reverse bias

D : of tunneling effect

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What is the input impedance of the following C.S. stage?^


A : R2 || R3

B : R1 || (R2 + R3)

C : (R1 || R2) + R3

D : R1 + (R2 || R3)

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