Test: The Inverting Configuration & The Non Inverting Configuration - Electrical Engineering (EE) MCQ

Resistance is connected between the positive input terminal and the output terminal

Resistance is connected between the negative input terminal and the output terminal

Resistance is connected between the input terminals

Resistance is connected between the negative input terminal and ground

The output signal and the input signal are out of phase by 180^o

The output signal and the input signal are in phase

The output phase is leading the input phase by 90^o

The output phase is lagging behind the input phase by 90^o

There is a virtual open circuit between the input terminals

The closed loop gain for a negative feedback does not depend only on the external parameters

There is a virtual short circuit between the input terminals

There is a virtual ground at the negative input terminal

The voltage between the two input terminals to the very small, ideally zero

The voltage between the two input resistance very high, ideally infinite

Current flow through the positive input terminal and no current flows through the negative input terminal

Both a and c

Connect a high resistance source to high resistance load

Connect low resistance source to low resistance load

Connect low resistance source to a high resistance source

Connect high resistance source to a low resistance load

It is capable of summing various input voltages together

Each input signal may be independently adjusted by adjusting the corresponding input resistance

If one needs both sign of a voltage signal then two operational amplifiers are needed

All of the mentioned

v₀ = v₁ (R1/Ra ) (Rc/Rb ) + v₁ (Ra/R2 ) (Rc/Rb ) – v₁ (Rc/R3 ) – v₁ (Rc/R4 )

v₀ = – v₁ (R1/Ra ) (Rc/Rb ) – v₁ (Ra/R2 ) (Rc/Rb ) + v₁ (Rc/R3 ) + v₁ (Rc/R4 )

v₀ = v₁ (Ra/R1 ) (Rc/Rb ) + v₁ (Ra/R2 ) (Rc/Rb ) – v₁ (Rc/R3 ) – v₁ (Rc/R4 )

v₀ = – v₁ (Ra/R1 ) (Rc/Rb ) – v₁ (Ra/R2 ) (Rc/Rb ) + v₁ (Rc/R3 ) + v₁ (Rc/R4 )

2

3

4

5

20 db

40 db

60 db

80 db

R₁ = 20KΩ and R₁ = 80KΩ

 R₁ = 80KΩ and R₁ = 20KΩ

 R₁ = 40KΩ and R₁ = 60KΩ

 R₁ = 50KΩ and R₁ = 50KΩ

The positive terminal is connected to the ground directly

The negative terminal is connected to the ground directly

The positive terminal is connected to the power source

The negative terminal is connected to the power source

Input and output resistances are infinite

Input resistance is infinite and output resistance is zero

Input resistance is zero and output resistance is infinite

Input and output resistances are zero

(1+R2/R1)/(1+((1+R2/R1)/A))

(R2/R1)/(((1+R2/R1)/A))

 (1+R2/R1)/(((1+R2/R1)/A))

(R2/R1)/(1+((1+R2/R1)/A))

R₂/R₁ – 1

R₂/R₁

 -R₂/R₁

R₂/R₁ + 1

(R2/R1)/(A+ R2/R1) X 100%

(1+R2/R1)/(A+R2/R1) X 100%

(1+R2/R1)/(A+1+R2/R1) X 100%

(R2/R1)/(A+1+R2/R1) X 100%

 A ~ R₂/R₁

 A >> R₂/R₁

A << R₂/R₁

None of the mentioned

Input voltage is equal to output voltage

Input resistance is infinite and output resistance is zero

It has 100% negative feedback

None of the mentioned

R₁ = 0.5 MΩ and R₂ = 0.5 MΩ

R₁ = 0.5 kΩ and R₂ = 0.5 kΩ

R₁ = 5 MΩ and R₂ = 5 MΩ

R₁ = 5 kΩ and R₂ = 5 kΩ

1 μV and 1 mV respectively

1 mV and 1 V respectively

0.1 μV and 0.1 mV respectively

0.1 mV and 0.1 V respectively

2v₁ + 4v₂ − 3v₃

6v₁ + 8v₂ − 3v₃

6v₁ + 4v₂ − 9v₃

3v₁ + 4v₂ − 3v₃