1000+ Computers and Microprocessors MCQ Questions and Answers - 2

Question: 6

The gain of an operational amplifier, at higher frequencies attenuates markedly mainly due to

(A) low wavelength

(B) reduced transit time

(C) heat generated

(D) the effect of stray capacitances

Question: 7

In operational amplifiers high input impedance

(A) reduces the loop gain

(B) increases phase shift

(C) results in internal oscillations

(D) increases the loop gain

Question: 8

CMRR (Common Mode Rejection Ratio) for a differential amplifier should be

(A) large

(B) unity

(C) small

(D) zero

Question: 9

A NAND gate is called a universal logic element because

(A) any logic function can be realized by NAND gates alone

(B) it is used by every body

(C) all the minimization techniques are applicable for optimum NAND gate realization

(D) many digital computers use NAND gates

Question: 10

In a counter or register, the production of a number that is beyond the storage capacity of the counter or register is known as

(A) logical function

(B) iterative loop

(C) executive routine

(D) overflow