Electronics and Experimental Methods (CSIR Physical Sciences): Questions 4 - 7 of 44

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Question number: 4

» Electronics and Experimental Methods » Operational Amplifiers

Appeared in Year: 2013

MCQ▾

Question

Consider the op – amp circuit shows in the figure.

An op – amp circuit diagram

An Op – Amp Circuit Diagram

In figure an op – amp circuit diagram is shown.

If the input is a sinusoidal wave Vi=5sin(1000t) , then the amplitude of output V0 is – (December)

Choices

Choice (4) Response

a.

5

b.

52

c.

52

d.

522

Question number: 5

» Electronics and Experimental Methods » Digital Techniques and Applications » Registers

Appeared in Year: 2013

MCQ▾

Question

If one of the inputs of J – K flip – flop is high and the other is low, then the outputs Q and Q¯ – (December)

Choices

Choice (4) Response

a.

Oscillate between low and high in race – around condition

b.

Follow the inputs and the circuit acts like an R – S flip – flop

c.

Are opposite to the inputs

d.

Toggle and the circuit acts like a T flip – flop

Question number: 6

» Electronics and Experimental Methods » Precision and Accuracy

Appeared in Year: 2014

MCQ▾

Question

One gram of salt is dissolved in water that is filled to a height of 5 cm in a beaker of diameter 10 cm. The accuracy of length measurement is 0.01 cm while that of mass measurement is 0.01 mg. When measuring the concentration C, the fractional error ΔCC is – (June)

Choices

Choice (4) Response

a.

0.5 %

b.

0.28 %

c.

0.14 %

d.

0.8 %

Question number: 7

» Electronics and Experimental Methods » Digital Techniques and Applications » Counters

Appeared in Year: 2011

MCQ▾

Question

A counter consists of four flip – flops connected as shown in the figure

A counter consists of four flip - flops

A Counter Consists of Four Flip - Flops

In figure a counter consists of four JK flip – flops is shown.

If the counter is initialized as A0A1A2A3=0110 , the state after the next clock pulse is – (December)

Choices

Choice (4) Response

a.

1100

b.

0001

c.

1000

d.

0011

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