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
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
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
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 
