GATE ECE 1990 | GATE ECE Year Wise Previous Years Questions

GATE ECE 1990

MCQ (Single Correct Answer)

-0.6

If the input to the circuit of figure is a sine wave the output will be. GATE ECE 1990 Analog Circuits - Operational Amplifier Question 51 English

A half-wave rectified sine wave.

A full-wave rectified sine wave.

A triangular wave.

A square wave.

GATE ECE 1990

MCQ (Single Correct Answer)

-0.6

The Op-Amp of fig has a very poor open loop voltage gain of 45 but is otherwise ideal. The gain of the Amplifier equals: GATE ECE 1990 Analog Circuits - Operational Amplifier Question 43 English

4.5

GATE ECE 1990

MCQ (Single Correct Answer)

-0.6

The CMRR of the differential Amplifier of the fig is equal to GATE ECE 1990 Analog Circuits - Operational Amplifier Question 44 English

1000

900

1800

GATE ECE 1990

MCQ (Single Correct Answer)

-0.6

In a BPSK signal detector, the local oscillator has a fixed phase error of 20⁰. This phase error deteriorates the SNR at the output by a factor of

$$\cos {20^0}$$

$${\cos ^2}{20^0}$$

$$\cos {70^0}$$

$${\cos ^2}{70^0}$$

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