Electronics and Experimental Methods-Operational Amplifiers (CSIR (Council of Scientific & Industrial Research) Physical Sciences): Questions 5 - 7 of 7

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Question number: 5

» Electronics and Experimental Methods » Operational Amplifiers

Appeared in Year: 2011

MCQ▾

Question

In the operational amplifier circuit below, the voltage at point A is –

Image shows an operational amplifier circuit

Image Shows an Operational Amplifier Circuit

In figure a circuit of an operational amplifier

(December)

Choices

Choice (4) Response

a.

0 V

b.

– 5.0 V

c.

0.5 V

d.

1.0 V

Question number: 6

» Electronics and Experimental Methods » Operational Amplifiers

Appeared in Year: 2011

MCQ▾

Question

A time varying signal Equation is fed to an Op – Amp circuit with output signal Equation as shown

A circuit diagram of an Op – amp

A Circuit Diagram of an Op – Amp

In figure a circuit diagram of an Op – amp is shown.

The circuit implements a (June)

Choices

Choice (4) Response

a.

Low pass filter with cutoff frequency 16 Hz

b.

Low pass filter with cutoff frequency 100 Hz

c.

High pass filter with cutoff frequency 16 Hz

d.

High pass filter with cutoff frequency 100 Hz

Question number: 7

» Electronics and Experimental Methods » Operational Amplifiers

Appeared in Year: 2016

MCQ▾

Question

Two sinusoidal signals are sent to an analog multiplied of scale factor Equation followed by a low pass filter (LPF).

Analog multiplier

Analog Multiplier

Figure shown two sinusoidal signal are sent to an analog multiplier.

If the roll – off frequency of the LPF is Equation , the output voltage Equation is: (December)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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