An OP-AMP is open-loop gain of 105 and open-loop upper cut-off frequency of 10Hz. If this OP-AMP is connected as an amplifier with a closed-loop gain at 100, then new upper cut-off frequency will be

1.  10 Hz

2.  100 Hz

3.  10 KHz

4.  100 KHz.

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4
Correct Answer :

10 KHz


Explanation :
No Explanation available for this question

A OP-AMP has an offset voltage of 1mV and is ideal in all other respects. If this op-amp is used in the circuit shown in the figure, then output voltage will be (select nearest value)

1.  1mV

2.  1V

3.  

4.  0 V.

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4
Correct Answer :


Explanation :
No Explanation available for this question

Assuming that operational amplifier shown in the figure is ideal, the current, I, through 1KΩ resistor is

1.  -4 mA

2.  -2 mA

3.  2 mA

4.  4 mA.

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4
Correct Answer :

4 mA.


Explanation :
No Explanation available for this question

The circuit shown in the given figure uses an ideal OP-AMP working with +5V and -5V power supplies. The output voltage V0 is

1.  +5V

2.  -5V

3.  +1V

4.  -1V.

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4
Correct Answer :

+1V


Explanation :
No Explanation available for this question

In the circuit of shown in the figure, LED will be ON if vi is

1.  >10 V

2.  

3.  >5 V

4.  

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4
Correct Answer :

>10 V


Explanation :
No Explanation available for this question

An op-amp, having a slew rate of 62.8V/m sec connected in a voltage follower configuration maximum amplitude of the input sinusoid is V, then minimum frequency at which slew rate limited distortion would set in at the output is

1.  1.0 MHz

2.  6.28 MHz

3.  10.0 MHz

4.  62.8 MHz

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4
Correct Answer :

1.0 MHz


Explanation :
No Explanation available for this question

For the circuit of the given figure with an ideal operational amplifier, maximum phase shift the output Vout with reference to the input Vin

1.  00

2.  -900

3.  +900

4.  +1800.

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4
Correct Answer :

+1800.


Explanation :
No Explanation available for this question

Assuming operational amplifier to be ideal, Vout/Vin for the circuit shown in the given figure

1.  -1

2.  -20

3.  -100

4.  -120.

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4
Correct Answer :

-120.


Explanation :
No Explanation available for this question

In the circuit shown in the figure if input voltage is 0.2 V, then output voltage V0 is

1.  6 V

2.  -6 V

3.  8 V

4.  -8 V.

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4
Correct Answer :

6 V


Explanation :
No Explanation available for this question

For the op-amp circuit shown in figure, the voltage gain Av=V0/Vi is

1.  -8

2.  8

3.  -10

4.  10.

View Answer  
4
Correct Answer :

-8


Explanation :
No Explanation available for this question
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