CSIR (Council of Scientific & Industrial Research) Physical Sciences: Questions 51 - 53 of 463

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Question number: 51

» Mathematical Methods of Physics » Poles, Residues & Evaluation of Integrals

Appeared in Year: 2014

MCQ▾

Question

A time – dependent current (where K is a constant) is switched on at in an infinite current – carrying wire. The magnetic vector potential is at a perpendicular distance ‘a’ from the wire. The magnetic vector potential at a perpendicular distance a from the wire is given by – (June)

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 52

» Thermodynamic and Statistical Physics » Planck's Distribution Law

Appeared in Year: 2013

MCQ▾

Question

The speed of the molecules of mass m of an ideal gas obeys Maxwell’s velocity distribution law at an equilibrium temperature T. Let denote the components of the velocity and the Boltzmann constant. The average value of where and are constant, is – (December)

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 53

» 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 and – (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

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