Electromagnetic TheoryScalar and Vector Potentials (CSIR (Council of Scientific & Industrial Research) Physical Sciences): Questions 6  9 of 10
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Question number: 6
» Electromagnetic Theory » Scalar and Vector Potentials
Appeared in Year: 2014
Question
A thin, infinitely long solenoid placed along the – axis contains a magnetic flux . Which of the following vector potentials corresponds to the magnetic field at an arbitrary point ? (June – 2014)
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 7
» Electromagnetic Theory » Scalar and Vector Potentials
Appeared in Year: 2012
Question
The vector potential due to a magnetic moment at a point is given by . If is directed along the positive z – axis, the x – component of the magnetic field, at the point , is – (June)
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 8
» Electromagnetic Theory » Scalar and Vector Potentials
Appeared in Year: 2012
Question
Consider an infinite conducting sheet in the XY – plane with a time dependent current density , where K is constant. The vector potential at is given by . The magnetic field is –
(December)
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 9
» Electromagnetic Theory » Scalar and Vector Potentials
Appeared in Year: 2011
Question
A constant electric current I in an infinitely long straight wire is suddenly switched on at . The vector potential at a perpendicular distance from the wire is given by . The electric field at a distance is –
(December)
Choices
Choice (4)  Response  

a. 
 
b. 
 
c.  0  
d. 
